There are sooo many cool things that are going to come out thanks to Taproot existing (basically privacy related stuff).
Taproot swaps are one of them. LN channel opens as CJ outputs, merging chunks ...
People go on and on about all of the functionality they think is amazing that they want to add to Bitcoin. The only function that matters is the one it's been serving flawlessly since 2009, and adding more complexity is not a good idea.