The fact that possibly the most corrupt one of the lot was not arrested, Mr step ladder himself, makes me think this was all a massive political play on his part. He either brokered a deal to get himself off the hook, or decided it was time to clean house and get rid of some political opponents.
Despite all of that though, I for one am glad they arrested them. Fifa is a parasitic abomination that has latched onto too many hopeful countries and bled them dry of anything resembling justice and tourism income.