Wonderful to see, thanks Travis!
As you show, RC exports a bag-of-triangles, in contrast to the nice structured quads you show here, so that alone is a strong argument for your approach, even before the decimation benefits.
I have Z-Brush 2018 and would to try out your plug in, if you’re amenable. I have a large interior model that I was planning to take to Mudbox to convert to quads, but would be excited to try Z-Brush instead!