I think Khloe really helped this back in HW, but she seems to have become dead content to most people (mostly because she's in idyllshire and most people don't care about the rewards), maybe if that kind of content got an update, we would see more people doing NM trials without needing to put housing items and other rewards in them.

The flip side of the argument is that NM fights should not be content, rather an accessibility tool so that players who don't want to do extremes get to experience the story, if more emphasis is put on the NM version, then it would compete with the Ex version potentially