We probably know more about FFP than the fans of most other clubs, given that we are one of the main targets of this made up and nonsensical rule.
Most footie fans are also pretty uninterested in accounts and have very little knowledge of how business or finances work.
When you add these two factors together it is perhaps not that surprising that there is so much utter rubbish spouted by so many.
The simple understanding from other fans seems to be that the rules are to stop City and other 'new money' clubs like PSG from spending big (ie more than the established elite) so they assume that because we and PSG are spending £xxx million then we/they must be guilty of breaching FFP.
The problem is, seems like many 'journalists' and commentators and pundits are no better informed, and it seems even La Liga official are confusing what FFP was meant to achieve with what the actual rules are.
Not once have I seen a journalist point out that profits on transfers in are taken in the year they happen and that transfer fees are amortised over the term of the contract.
Expect to see calls for salary caps, transfer spending to be linked to gate receipts and lots more arbitrary made up rules to protect the elite, and ultimately a breakaway European League which will by invitation only. What really bothers the traditional elite clubs about City and PSG is that we stop them from making juicy profits that they can take out of the game. Previously it was a cosy cartel where they could all make lots of money for their owners while winning everything between them. City and PSG are investing so heavily that their choice has become make money or win trophies. Up till now that has been the choice facing Premier League owners (United, Liverpool, Arsenal, Spurs) and now it is hitting Bayern and Barca and Madrid.