Hi! I'm actually the developer of Disco Dodgeball, and this popped up in a Google alert. In case you missed it, your resolution option suggestion was included in the version I uploaded last night (.264) along with several other improvements.
I've been very disheartened by these other stories of Early Access failures, and I'll do everything I can to keep improving my game and earning people's trust back into the system because I think it has the potential to be a great option for certain developers and certain games.