The emphasis on “balance” here is well overblown. And as far as I am concerned the input from the “balance” crowd borders on bullying of those with ancillary views.
Good luck with your “balance” when you’re trying to close a gap, stay up in a rotating pace line, etc. “Balance” is great, once you’ve set your engine correctly over the cranks/pedals, but it’s mainly for unicycles.
I first became involved in this thread when it was being discussed to move the saddle fore and aft to solve a reach problem (caused by incorrect frame or stem size). I am 100% convinced that is not the way to go.