The pacifist movement on Mandalore (of which Satine surely wasn't the first) might have gone a bit far, but I think that's understandable given the extreme necessity of change. Continuing to be warmongers and warriors is just as bad for Mandalore's heritage, nobody to honor any heritage if everyone is dead (and what about their home planet's natural ecosystem, does that not count as heritage?).
For the survival of the Mandalorian people, something had to change. Multiple other Mandalorian colonies had been decimated to the point that the planets themselves had broken up. Mandalore itself had been absolutely decimated, to the point where people have to live in bio-domes. Ya I'm really surprised that people think Satine was wrong? Like sure, a bit more focus on preserving Mandalorian heritage in some way would have been nice, but it's very clear that dramatic and immediate change was absolutely necessary for the survival of Mandalore.
