Yeah, that was really weird. First he mentioned how currently the GA gives a fixed 200 population at level 1, then he showed an example of a GA that gives 75 population at level, and how that increased to 77 population after starting an upgrade. And apparently we are supposed to be excited by the change because eventually, in the future, we will get to a point where the GA will be giving us 4000 population... Hello, Elvenar to Timon! Not everyone is that far into the game!
Prior to Fairies the GA is worse than before, especially if it is above level 1. I fail to see how this is in any way a good thing.