So you think they can push whatever nonsense and liabilities they want upon users? No, they cannot. By offering a software, as advertised in its readme, they're in effect making a particular promise. They do not get an automatic right to violate this promise. If they cannot maintain the software, especially when it comes to major bugs, the repo should be set to Archived. In the case of this repo, since user interaction is disabled, it is even impossible to know which other major bugs may exist as would've otherwise been reported by users. Being a volunteer is no excuse to be horrible.