I don't think the true story will come out. On the live shows last year (even the final) the live version of autotune was clearly in evidence to anyone who runs live sound. The audition autotuning is generally done in post production, but it's the live stuff that is really insidious; the producers can now choose who sounds good and who doesn't, opening the door to 'fixing' the competition so that the best commercial proposition wins, rather than the best singer.