Yep. They tested the new system on Dreamhack (a totally NON-INTERACTIVE stream), declared it a success and immediately rolled it out to everyone. To many torches and pitchforks from everyone who actually freaking talks with their viewers.
Seriously, what GENIUS overlooked that?
Don't expect it to be rolled back though, I'm sure it reduces their bandwidth bill by a shedload, being able to push most of it off to a CDN clearing house collective. 'The needs of the many' indeed.
Best part is, they're estimating that they MIGHT be able to get it down to a 15-second delay. Best-case. So over triple the average delay on RTMP. Most smaller streamers are pretty outraged, and with good reason... they've gutted the entire reason to GO to Twitch, instead of just watching a Let's Play on YouTube.
Seriously man. GENIUS move.