I hate this narrative. AA built - and then decimate the farm...there's no doubt. We really have no good understanding as to why he did that. It may have been his decision to do it to make a push before Jose and EE declined. He may have been told he's to "go for it" by Beeston or he'd lose his job.
Either way, it's not he's got some Dusty Baker track record behind him. There's nothing to suggest "he's probably going to decimate their farm system in the future".