I'd be very surprised if the average buyer of Call of Shooty was aware that their game could be taken away from them (for reasons (or lack thereof) other than maybe getting their account banned for cheating).
I'd also be fairly surprised if that average buyer cared all that much. For many the life cycle of any random game is short enough that it doesn't matter whether or not it gets revoked, just so long as that's far enough into the future (and Sony probably knows that). So long as the average buyer doesn't have to think about it, since any revocation is so far into the future as to probably not matter, the average buyer won't care.
There's some media attention from the people who do care and want Sony et al. to do better, but they alone don't have the power to fight back against Sony, since even though the rest of the market might even agree that the current situation is bad, it's very difficult to mobilise people into actually doing anything (and what are you even supposed to to beyond 'voting with your wallet'?).