When it comes to these things UEFA seem to move between the hopeless and the incompetent. They managed to get Platini out the way but don't look to have forward.
It always appeared to me they were trying to make an example of Man City, perhaps thinking they were a softer target than some of the more established Champions League types. Guardiola always seemed quite relaxed about it which suggested to me that City always thought they would get UEFA back into their box.
I did think that City refused to cooperate with the investigation as it had started after a German magazine "obtained" stolen emails.
That is the same thing most governments and big corporations do when leaked documents come into the public domain. The problem is then that uefa does not have a proper investigation unit. I'm not sure why but the setting up of such a unit has always run into problems. Its almost as though there is something to hide...which of course is ludicrous.