For me it has always been about a long-running smear campaign to undermine City. When you look at it logically how can you fairly investigate vague allegations that are ten years old. Remember we already admitted breaching FFP rules in those early years when we needed to invest heavily. We agreed a settlement and paid the fine. Then years later allegations surfaced that suggested we may have breached the rules more than UEFA were aware of. Essentially we faced being sanctioned for something we have already been punished for.
It is strange that we were the only club pursued in the UK following the Footy Leaks episode. Those leaks included lots of allegations about other clubs, players, and agents apparently fiddling image rights, avoiding tax, and breaching transfer rules...but City were the only ones to be pursued by the media and UEFA...and now the PL.