That shouldn't really apply.

RJ said women were using less saidar for the same tasks than men use saidin, as their weaves are more efficient. That probably originates in a large part from the very nature of saidar vs. the nature of saidin. Women need to yield in order to control saidar, for men it's always a struggle to control saidin.

It's also more complex than this, as we know saidin is better suited to some tasks, and saidar to others. So, "women's weaves are more efficient and therefore require less raw power" is more the general rule, discounting the exceptions when finesse or raw strength gives a distinct advantage to one sex over the other.

In other words,the difference should apply just as much if not more to this Age's channellers. You call the Aes Sedai untrained, but they are in fact extremely well-trained at the weaves the WT knows compared to the Asha'man whose training is rushed, and far less diversified than that of Aes Sedai. The gap in experience and knowledge between AS and Asha'man is probably much greater than it stood between male and female channelers of the AOL.

About Gateway size, it's clear there are other factors that may come into play (one of them might have to do with affinity or skills with the Pattern... which in turn seems to be related to affinity for Spirit in channellers, but a similar affinity can be found in non-channellers too (eg: Perrin, Bair, possibly Min) so it's quite possible that same unknown factor X found in channellers and non-channelers and related to the soul has an incidence, manifests itself as a strength or affinity for Spirit too when the person is a channeller) and it's not a very reliable way to judge strength, but strength is a major factor, perhaps simply because a lack of special ability can be compensated by using a great deal more OP to make the gateway. As the special ability with Spirit seems rare (and for now there's no absolte evidence ability with the flow equals automatically better Gateways, better ability with shields and natural ability with dreamwalking... though Egwene was sharp about puzzling out travelling on her own), it would mean for the average channeler strength is a big factor in their maximum gateway size, and mind you, with Callandor perhaps Androl would win the contest. We've seen women use angreal to create larger gateways, we've seen a full circle of thirteen making a large gateway, and we've seen Neald make a larger gateway than he ever could unaided after when he linked with women.

If the general rule applies, and it probably does, it means a large gateway, special skills like Androl's excluded, requires considerably more strength to make for a man than it does for a woman.