Great post! Those are some really good observations, and I totally agree myself.
My favorite thing about XI was the ability to change class on the fly. I feel like this has been thrown out the window in XIV, I really like playing Conjurer, but I find it incredibly frustrating to find myself waiting days to switch my points into a setup more viable for a Botanist! And then trying to switch back, I find myself missing out on 40-50 useless points still left in Str.
I would love to see an individual set of stats for each class I change to. Physical level doesn't even need to be removed! I think combining that with hard gear stats / level requirements and you're already on your way to a much better system.