Um...those are things you need to check before queueing in the first place.
Yes, but in the event of a screwup, you could just quickly exit, take care of it, and requeue again without much hassle (unless it was a roulette)

This has happened to me many, many times over the course of various PF'd duties, and I don't even use the PF all *that* much.

Yeah, people will just have to be more careful from now on, but it's still kind of a silly change that wasn't necessary in the first place (assuming there actually is anything different after 3.3 compared to the system beforehand and the screenshot isn't just lying to us)