100% with this. The Slimes over on /tg/ are way more interesting and diverse than what we have now. They're meant to be more of a "reward" species for xenobiologists, as far as I'm aware and they are powerful to match that, so we'd definitely need to nerf these bits, but things like toxins healing them and charcoal doing the opposite are very interesting and I'd like to see them in practice.
That said, there are many more species that need improvement and diversification on Paradise much more urgently than Slime People, who are already one of the most popular species out there. If anyone wants to code it, go for it, but I think our efforts should be focused elsewhere for the time being.