As entertaining as the Guido discussion is, I don't think the re-opening of AC in particular would increase the Guido population at WDW. In all of the times I was at PI, I never recall seeing a Guido in the AC. I don't think it's their cup of tea. So, even if you are glad that PI closed because it was a draw to them, you should praise the possible re-opening of the AC, because it brings back something uniquely Disney, without drawing the Guidos back.
For what it's worth, making fun of Guidos is not unfairly superficial or judgmental. If you've ever met these folks, it is abundantly clear why they are so loathed. It is not simply a "look", it is a mindset and lifestyle.