I HAD a Sheraton room. I was typing credit card info in. And then the system took it away from me.
The real problem is that most of the hotels don't have the day between Dev and West in the block, and you can't do a split reservation. So you'd have to get one or the other half outside of the system.
Also, a LOT of the hotels had Friday/Saturday night sold out but nothing else (making them extra useless).
Most of the hotels had only single-bed rooms left.
All of this, and I literally was in the system less than 5 seconds after the tweet.