@chyna, I know nothing about this man and can’t speculate on his motives. But I’ve read enough mystery stories and strange sagas to guess at a few possibilities, which just means speculating and treating the speculations as equal until some can be eliminated. I have no expertise or experience in this area.
1. What if he truly believed that the authority does come from such as he and the community he serves, rather than from above, and he has just quietly been taking his stand on the question?
2. What if he wanted to call attention to the doctrinal issue at work here, namely, whose authority, the One or the Three, and force the ecclesiastical body to weigh the question?
3. What if he has come to believe that there is no different future life for those who are baptized using the prescribed wording and those baptized using a variant, because the intent is all, and he wanted (how? I don’t know) to be able to prove it?
4. What if he is a heretic and wanted to undermine the system?
5. What if he studied it deeply and came to believe that the received tradition was wrong and his version is more faithful to some original intent?
Meanwhile, I still want to know what are the actual consequences of having your baptism retracted. Also I don’t see mention of whether he did all his baptisms this way over the years or he did it just this once and that somehow tainted and invalidated all the ones he had ever done. Just this once, of course, argues for an unintentional lapse.