That hardly justifies the block. Users deserve empathy too, considering they have to bear the consequences if things go wrong. One now doesn't even know and cannot even estimate the number of other issues that must have gone unreported. It's not safe or wise to use a package that is so shrouded in mystery. It is in fact foolhardy.
If maintainers don't want to address issues, they only have to ignore them. At least other users can then still discuss the issues in-between themselves. A lack of empathy for maintainers does not come into the picture.
No one should have to go to Mastodon or wherever to find out about the author's stance. The readme of the repo is where the stance belongs. The readme is currently grossly misleading, asking users to use Discussions, but this is not possible.
Overall it seems like a hazardous project to use.