Key word is TEAM. When you donate, you're donating the TEAM, not this specific mod. They have made and will continue to make content.
So why close the donate button just because for this particular mod there is one aspect which you think is not up to par? They make other things too.
What if I love this mod (despite any issues) and want to give the team behind it a little incentive to create more in the future? Why shouldn't there be a link here to let me do that?
Because the mod is not up to date and it's broken. If they fix it, they deserve evcery single penny. It's an amazing mod but right now it's broken. Let's agree to disagree, we are not going anywhere with this... I think it's shady, you think it's ok to still be able to get money for something that doesn't work. I hope you never ever complained about a paid dlc, that would make you a big hypocrite.