Not sure why they made all those changes, it wasn't a big deal
they realized that most people need to be practically slapped in the face with a giant OFF button, and if that doesn't happen, they'll panic, nag, and moan, rather than seeing if a solution actually exists.
all they really did was make the Off button bigger, if you think about it.
I'm happy though, that this is settled. now they can get to fixing all the rest of the crap that is wrong with Buzz.