Support City on this one. At present, FFP is theoretically a good thing because all it does is ban clubs from Europe if they're making undue losses, not impose penalties on the domestic leagues. Ergo, 'the dream' for what it's grubbily worth, could still be kept alive; i.e, a team being bankrolled from obscurity to the title. (Not sure what that says about football fans, but that's a discussion for another day). This, however, will perpetually set the top four, maybe five teams as the top five for all eternity, since they can buy the best players and pay the best wages while still making a good amount of money due to their large sponsorship deals, large traditional fanbases and generally large stadiums. Thus, they wouldn't suffer at all, and they'd even probably pass FFP and so widen the gap. The small teams, however ,would be directly penalized by the Premier League itself by trying to break the monopoly.
Unless I've got the wrong end of the wedge here, this would combine with the FFP to create a new, utterly unbreakable Top-Four style chokehold on the league. Not a good thing.