In case the Flow guys are reading this, please please please put out a simple HTML version of your thing. Flow sits at the top of my "most annoying web app ever" list, because it follows the pattern of loading an empty shell, then populating it. I bet this works amazingly well for the guys developing it from their local dev server, but for those of us across the Atlantic from your servers it's really really painful.…
I'm guessing you don't actually use flow day to day. I'm also guessing that if they made an HTML version you probably wouldn't use that either; you probably have your own way of managing your projects and todos. I'm also guessing you're using this post as a sounding board for your gripes with single page javascript applications. Are any of these guesses accurate?
It's great feedback. It points out specific problems and solutions. Ways that, from his point of view, the UI could be improved.