Tell me why we don't use a sealer on transmission pan gasket

[Mercedes Man]

I noticed that there are a lot of postings about transmission pan gaskets leaking. The problem is that the pan is over torqued, and the pan gets deformed. It is common practice not use a sealant when putting a transmission pan on. This is understandable since it might be hard to the get the gasket maker off the transmission and the pan. However, in the case of a deformed pan, would it not be better to carefully put sealant on the gasket rather than buy a new pan?