This is what I'm intrigued by too.
Without going down the "obviously United can do whatever they want, dur, dur, dur" route, did United have to report the finances of the dealings Ferguson did with the owners of the club outside of United? So did they have to report all the goings on with the racehorses and whatever else?
Surely, that's a similar business transaction as Mancini working for the Abu Dhabi club and as long as everyone has paid tax in the correct way depending on the country the business has been conducted in then what business is it of the Premier League?
When does a working business relationship outside of a football club become disguised owner funding?
Does City have to give the Premier League access to the finances of the restaurant in town owned by Pep, Txiki and Soriano? Do they have to prove that they own the restaurant and not Sheikh Mansour?
This is where I don't understand where the whole 'if City are guilty then people will go to jail' stuff comes from, if tax has been paid and all the accounts are in order and show where money came from and went to then why would HMRC or the Fraud Squad get involved?
Surely the only issue would be whether the Premier League think that Mancini being paid by a club in Abu Dhabi was actually disguised remuneration for the City job? That would be a Premier League issue rather than an legal issue.
Like a lot of things with them, it feels like the Premier League have put all these half-arsed rules in place that don't stand up to scrutiny and don't work particularly well in the real world.