Steve A, you misunderstand me. I don't know, care or otherwise about one hand finish or two. But something that happens after doesn't effect what happened before. If you tell me the swing thought/mechanics/Muscle memory of releasing the top hand helps a hitter keep the bat in the zone longer helps in some way, ok. If you tell me the opposite, ok on that too.
All good. No issues here at all. Clearly there are greats who did it both ways. Hank was also a front foot hitter. Ted, Babe, Joe D & all the old school guys kept both hands on it after finish. It is simply a matter of preference & individual body type & style. The one hand release does have logic behind it & certainly the two hand finish does as well. This is why it is a cool conversation.