It's preferred by people who are trying to avoid nickel. But I don't know that I'm necessarily afraid of a little nickel in my alloy.

We all started with Nichrome wire and some are still using it. I probably wouldn't go 100% nickel, but, on the other hand, Evolv chose it as their preferred wire for
dna 40 and I know that they did some studies wrt to its safety.
Considering that ss 316L is so much easier to work with and you don't have to bother with TCR settings, I'm going to go with ss 316L--FWIW.