I remember watching a trailer for Turn A Gundam early on, around the time of its debut, and pretty much forgetting about the whole thing. As you can I imagine, my current reaction is: what the heck was I thinking?
Turn A is just so...different from the average Gundam series but at the same time it brings back the spirit of innovation and creativity. An excellent cast of characters and a completely new story, with a few familiar ideas but a very fresh execution. I'm enjoying it more than the second season of 00, if you want me to be honest, although that's an unfair comparison. 00 is a good show, by all means, but it takes a different set of risks while still sticking to the usual formula.
I don't mind spoilers, but I'm currently in the middle of watching Turn A, thanks to both this podcast and the recently (unofficially) translated Super Robot Wars @ Gaiden for the PS1. Great game, for those few who haven't checked it out.
As for hyper criticism...honestly, it's unfortunately become one of the landmarks of the internet as we know it and it's natural for directors like Mizushima to notice. I'm sure he has no problems with valid complaints but a lot of people just have knee-jerk reactions. Even when something deserves criticism, and many recent shows do, that's not an excuse for excessive trolling and flaming.