That is a nice to see after reading several past issues and a closed unmerged PR where innumerable users and (presumably) instance hosts made good faith arguments as to why a hard coded Regex was not only untenable , but antithetical to the ideals of the fediverse — which fell on deaf ears of the developers.
The maintainers can be pretty ruthless about closing issues. I think it’s either about their workflow or about maintaining focus for the main branch’s feature set. Last I knew the core team was two people and maintaining a repo with an increasingly large number of contributors can be super time consuming.