Any new language project in 2020, for good or ill, is going to be highly opinionated and self-select for people who share similar views on language design. When someone comes along on their discord and says "you need to have this security and correctness issue that I care about deeply fixed yesterday" you really can't be surprised if not everyone shares your urgency- There are probably other languages/communities that DO care deeply about exactly those types of issues, that's the beauty of the long tail of the internet.
Yes, a bit of tribalism seems to be ingrained in every online community these days. That clashes with a lot of people having pretty high expectations for code provided for free to them.
I don't see how those two things coincide at all. Further, your second statement is a strawman - for a project and community that touts being a serious replacement for C, there are indeed expectations about the security mindset of the individual providing the code. When the project has 7k+ stars on Github, clearly people are looking at it and using it. If the maintainer is being unsafe, it's ridiculous to imply nobody is allowed to be critical of that.
