> they didn't find any specific issues
The linked article specifically mentions that a specific soundness issue had been found and a fix had been submitted as well. If they had done nothing, it would have attracted no comment. If they had allowed another maintainer to review and merge, it would have attracted no comment. But they went out of their way to denigrate the people who called attention to this issue, called the issue "boring", rejected the patch, then deleted the issue and all comments.
> Every time I stumble upon shitty open source code, am I supposed to fix it?
Your tone suggests that you don't want any part of this, so you continue along that path. I'm not going to convince you to start caring about your fellow men and women.