You make a lot of good points, a lot to consider.

It seems reasonably easy to set up content in DS, but it still takes modeling and texturing skills to make the content in the first place. It might make sense to make some bib overalls and a hunting jacket.

Carrara has not been well treated, no. It's a deep and well-sorted program with a lot to recommend it, but I think we're all going to die of old age before they update it. At this point, I doubt they have the resources to do anything with it. They'd need to hire a team, and the new Carrara would likely be an entirely different program.

Those other mis-steps are annoying. It's the sort of thing that happens in companies, and who knows why? You could be right about all of it, and It's probably best to let the grudge go.