You have a lot of great points in this video; I agree with absolutely everything.
From a production standpoint it would be nice if you synced up your audio to video in post instead of trying to do everything in real-time. The fact that you were able to speak so eloquently for an hour without break is pretty fantastic (seriously great job), but don't be afraid to record in segments and stitch together the audio. If you want to avoid weird dead-airs or audio distinctively cutting back in just record a few minutes with your mic of your room when its silent and use that as a backing track.
You do a really fantastic job in your testing, understanding the problems with the game and providing pointed, meaningful, and well researched feedback on how to fix them. Seriously, great work.