From what I can tell, the gain in resolution from the 3x module over the main module is huge. That means the 15PM is significantly worse in the 80-100mm focal length range, one of the most usefull FL range.
In the other hand, results from the 3x module are still great at 6x (for whatever reason, Apple use a base FL of 27mm to compute the mag factor, so 6x on the 15pro means 6x27=162mm).
I would definitely not call trading a 80mm lens for a 200mm an upgrade.
Hopefully, Apple is aware of this and is working on improving the short tele results for a future release (with an intermediary module, or a main module with more pixels).