Sounds like a bunch of whiners to me. Only people that should be upset is if they bought the game fairly recently. That would be a bummer. But a lot of these reviews seem to be from people with hundreds to thousands of hours in the game. I think you guys got your moneys worth.
Cheaters is a legit worry since you can make dummy steam accounts and get right back into CSGO now. Youd lose the "prime matchmaking" unless you buy it so at least that would keep cheaters in the non-prime matchmaking...which sucks for everyone else that isnt prime.