Yeah, Manfred did such a great job in the whole Biogenesis Investigation, no one can pull anything over on that tool bag...
I really think he screwed the pooch on this one especially. I think he knew that once Mike Fiers outted the scandal I the media, he was forced to act. Several teams had lodged complaints already, but once the media got ahold of it, he couldn't turn a blind eye. But he totally botched it by not challenging the players' union. Instead, he took the easy way and offered all players immunity to get answers.
Maybe he did it intentionally so that he would not feel forced to penalize any player involved. Either way, it did not sit well with the majority of players. Now they will take matters into their own hands.