I'm not really sure the technique behind, but beeing able to unwarp nurbs uv's in MoI would be so great.
Ngones output are really nice, and help uv's job in soft like modo or uvlayout a lot, it's much better than having thousands or micro triangle to deal with ...
but, I also often have trouble to unwarp some strange/complex ngon topology from MoI, looks like unwarping algo don't like those extreme ngones that much.

Without saying that every uv's job is of course lost if you decide to re-export a model (or some part of it) becouse you need
a better mesh resolution ... it will enhanced the workflow so much.