My read of that ticket is it's a bunch of people saying "this looks hard, I don't want to do it." But if someone wrote a (good) pull request, I expect MacPorts would accept it.
The thing about MacPorts is that it's a very community-driven project. Things happen when someone decides to go do them.
(Individual maintainers are sometimes opinionated, but I wouldn't say they speak for the whole of MacPorts.)