It certainly looked like Stanford faked injuries, but that kind of thing really shouldn't bother anybody, IMO. If it bothers coaches they should push for a rule change to discourage the practice, such as forcing injured players to miss the remainder of the drive.
I didn't see a single replay of the final pass where you could tell with stone cold certainty that the ball contacts the ground. It does appear to "bounce" slightly, but it very well could have bounced off the receivers hand or arm. If you ask me what I "think", I think it was probably an incomplete pass. But there wasn't any hard proof it hit the ground, and it was ruled a catch on the field. If evidence is not conclusive, the play is not to be overturned. Therefore, the correct ruling would have been to say "I don't know, call stands." Maybe not in those exact words though. They'd probably just say the "call stands" part.
Let's not forget either, this was a call that decided a football game. If you aren't sure which way to call it, you shouldn't call it in such a way that ends the game. No impartial observer ever wants to see a game decided by the officials, especially if it's in controversial fashion. Not every such situation can be like the Fail Mary and better the greater good as a result.
Allegedly, Stanford could not challenge either, and the previous challenge happened within the final two minutes and wasn't automatic. Either the UW penalty shouldn't have been challenged or the previous play Stanford challenged (it was within the last 2 minutes) shouldn't have cost Stanford a timeout. Either way, there was a mistake by the officials there.
As far as Shaw, I don't get it. Comes across like a sore winner. Maybe he's trying to copy Harbaugh's success by copying Harbaugh's bully mentality.