I do not believe for a second that Microsoft changed their policies because of the so-called "on-line" backlash. They sold 80 million Xbox 360s and across the core Western gaming sites (GAF, IGN, C&VG, Gamersyde, GameInformer, Eurogamer etc), there were a few thousand loudmouths. There always are and it's why the term "vocal minority" exists. Microsoft changed DRM tact because a) after their comms snafu they likely sat down and realised they hadn't thought everything out and b) because they had tangible data, like pre-order numbers, showing the policy was unpopular in real terms. Microsoft have been taking shit online for loudmouths for 30 years and they've never paid a damn bit of attention to those.
The reason I'm making this point is because I don't believe that the current online discussions taking place around the internet, again by a vocal minority, will have any effect on what publishers and developers do. If Microsoft gave away free beer, they'd be people complaining that they wanted another brand of beer. People just like to bitch and complain and the internet lets people do with this easily and without consequence.
But there is consumer power it, it's called voting with your wallet. If everybody who isn't an Xbox owner wants to protest this, then don't buy the PS4 or PC versions. That will send a real message for SE to not do this again.
But you can bet your arse that publishers collectively know that a statistically insignificant number of people will do this. Look at the backlash over WATCH_DOGS. Lots of people said they'd boycott the game and it sold fantastically. Publishers know that this online hullabaloo is all hot air. And like somebody posted, it's creating buzz about their game.