If someone can draw more than this much above their maximum it would seem odd given how many times we've heard about the dangers of overdrawing.
Why? You can overdraw as massively as you want. The constant thing is that you will either be burned out, or straight out die. The best evidence for this is Lews Therin, who, with no angreal or sa'angreal, overdrew enough to create a mountain taller than Everest.
From there, the rest of your argument collapses...
Gonna miss these discussions. Was fun to lay this to bed.
LTT as the Dragon falls as outside of the "rules" as Rand does. Not to mention he didn't create Dragonmount he created a chain reaction that lead to the creation of DM by calling down a giant bolt of lightning that came crashing down into the earth's core leading to a volcano. This also explains the Breaking in much more realistic terms than thinking every male who went mad was powerful enough for to create massive damage alone ... rather assuming they created localized damage that lead to chain reactions of the earth itself.
I too will miss these discussions