I believe you, but in case it's a new project. You also have to take into account keeping this team together, need promising something to keep they interest. As I see the most successful games here has one main developer who manage the things together and mostly the project rely on them. I seen many new project what failed on the start and I avoid to dive in the why.
And at last, this game's biggest problem isn't the animations, I think. But I believe in a continuation, IMHO a good coder can rid of problems with the bugs on the new engine. I tried, I made it to run on UE5.3, but I cant deal with tracking down the code problems (yes I gave up). If it will done a lot of new possibilities come up, like replacing or upgrading the old daz models, animations, assets, other visuals, etc. It's still sounds easier to me as remaking something from scratch.
(I did a quick count, there are roughly over ~1000 anim files (the part of full anims what isn't the same) within the game's folders, it is a lot)