I thought, initially, after reading tGS that Egwene had turned a corner or come to some realizations or developed in some way, since she seems to have acknowledged mistakes that were made earlier and changed her position to reflect her new perspective. But I appear to have fallen into the PoV trap like everyone else. In a minor way she changes her course, but it is not really change if it is simply holding to the same course in the grand scheme of things.

The "change" in question, of course, is when she changes her mind on the Tower rebellion and harshly criticizes the rebels, all but forcing them to pass beneath the yoke upon their re-entrance to the Tower. To those of us who looked at the rebellion objectively and recognized it for what it was at the time it was ongoing, it appeared that Egwene had finally come around to our point of view, and we rejoiced. But it was not so. She is, as the Eagles would say, "Still the same old girl [she] used to be..." and she can no longer hide her lying eyes.

Think back, fellow Aegwenists, and recall what is the on-going and constant fault of Egwene from the very very beginning? Her constant inconstancy. Egwene is constantly betraying her old friends in favor of her new ones who offer her more or newer advantages! She turns on her friends to side with the Wisdom, because the Wisdom can teach her what she needs to get an authority position. She casts aside the trappings of status in the Two Rivers to which she has aspired since childhood, when offered the chance to be an Aes Sedai. From then on, she NEVER sides with ANYONE against Moiraine, aside from a few token verbal protests back when she was still aware that starting a war to assert your authority over recalcitrant followers was immoral. Her loyalty to Moiraine is not all-consuming, however, as she soon finds herself getting reminded by Moiraine to be careful about getting buried in her Aiel role, after Egwene want to know why Moiraine isn't reporting all her knowledge of Rand to the Wise Ones. The Cairhienin Aes Sedai who bows to no scruples when it comes to handling Rand has to tell Egwene, "Whoa, Nelly! Let's give the man a LITTLE privacy."
From there she goes completely over to Siuan, who dangles political power and advantages over the Hall to make herself a more influential Amyrlin. As Amyrlin, she's flipped from expecting Aes Sedai to provide information to the Wise Ones, to expecting the Wise Ones to look out for Aes Sedai interests concerning Rand, and trying to guilt Amys into helping that cause.

With this track record in mind, her reprimand of her erstwhile followers in Tar Valon can hardly be surprising. They are old friends. She rode them about as far as she could, using them to get her name in people's minds as Amyrlin Seat. They have given her their loyalty, which is all they have. They can't make her Amyrlin over the whole Tower - that gift is only available from the real Hall in Tar Valon. The loyalist Hall and Tower are Egwene's newest friends, and the newest group to offer her a new level of power! By the typical rules of Egwene's Code of Friendship Priority, the Tower sisters are It, and the Rebel sisters are Spit. Oh, and the castigation of the Tar Valon Hall moments before? Well that was in defense of Silviana, who, as her Keeper, might reconcile the Red Ajah to follow her. By being nice to Silviana, she gets control over the last Ajah. The split Ajahs had each come under her sway in each of their elections - now they were under her thumb and she had no need to be nice to them. But getting those Reds, so previously rejected as unpleasant and troublemakers? Yeah, more followers, more power to gain! So she yells at the Hall for their punishment of a prominent Red sister, and never mind that their acts are in keeping with the spirit of her first declaration upon assumption of her war powers in the rebel Hall! She threatens to birch the leaders of the Hall for pointing out her inexperience and suggesting she might not have the best idea as to their course of action! How is this any different from Silviana barging in on a Sitting of the Hall (and let us not forget that there are strict rules & procedures surrounding & protecting the Hall) to attack the Amyrlin Seat for her treatment of an admitted capital criminal! Whatever Elaida did to Egwene is lenient by Tower Law, because Egwene is guilty of a crime for which the prescribed penalty is death. All the usual rules for coddling initiates (does Egwene ever recall her dear Aiel friends' opinions of those rules protecting novices and Accepted - of course not! She can gain power by playing up Elaida's violations of the rules, so the rules are good, and the people who scoff at them as "coddling" are long forgotten) should not apply in Egwene's case, since the typical initiate is not a capital criminal under a suspended death sentence. Silviana is every bit as, if not more guilty than Romanda, but being nice to her makes the Reds more likely to follow Egwene (rather than follow the example of the people who first thought Egwene could be Amyrlin, and run off to rebel over their Ajah losing the Amyrlin Seat). This gives Silviana the magical status of Egwene's New Friend, and the hell with the rest of you! What have YOU ever done for Egwene, oh loyalist Hall of the Tower? What's that? You raised her to the Amyrlin Seat and removed all questions of her legitimacy? But what have you done for her recently? I mean in the last five minutes? Yeah, I thought not! That's why the Tar Valon Hall is reduced to the position of cast-off Old Friend.

With Egwene al'Vere, the more things change, the more they stay the same.