I mean, at this point the slayers have access to two curse-free demons, one of which has undone almost every drawback there is to being a demon. If none of these drawbacks are passed on to new demons that Nezuko may be able to create, they should all be lining up.
To top it off, they supposedly now even have a cure just in case you are against the idea of keeping the explosive power, regeneration, and immortality.
Edit: Just kidding.. I remembered they went ahead and "saved" Nezuko after all her hard work 😅.