The Court of Arbitration for Sport (CAS) overturned the two-year Champions League ban placed upon City by UEFA for alleged breaches of its Financial Fair Play (FFP) regulations, but not because they were "innocent" of all charges.
Some allegations were indeed unproven, but others were simply time-barred (outside the five-year limit of UEFA's investigation). So, to suggest that City were found "completely innocent" was, in reality, completely incorrect.
This isn't even the first time that they've been accused of breaking the rules. In 2014, City actually accepted a conditional £49 million ($56m) fine and restrictions on their European squad and incoming transfers for breaching FFP regulations.
Guardiola, then, is either ignorant of the facts – or simply toeing the party line. The latter seems far more likely, given his stance on City's alleged misdemeanours has so dramatically shifted over the past year.
Last May, when asked about his defence of his bosses, Guardiola explained, "When they are accused of something, I ask them: 'Tell me about that.' They explain and I believe them.
"But I said to them: 'If you lie to me, the day after I am not here. I will be out and I will not be your friend anymore. I put my faith in you because I believe you 100 percent from day one and I defend the club because of that.'"
However, when asked about the possibility of walking away if City are found guilty this time around, Guardiola declared: "I am not moving from this seat, I can assure you. I want to stay more than ever."
Basically, Guardiola is now saying that regardless of the outcome of the legal process, he will continue to support City. He has effectively gone all-in with Abu Dhabi, and that looks like a terrible move on his part, much worse than any unnecessary tactical tweak he's ever made in a big Champions League game.