I think a fundamental problem is that many people assume that an LLM's failure to correctly perform a task is a bug that can be fixed somehow. Often times, the reason for that failure is simply a property of the AI systems we have at the moment.
When you accidentally drop a glass and it breaks, you don't say that it's a bug in gravity. Instead, you accept that it's a part of the system you're working with. The same applies to many categories of failures in AI systems: we can try to reduce them, but unless the nature of the system fundamentally changes (and we don't know if or when that will happen), we won't be able to get rid of them.
"Bug" carries an implication of "fixable" and that doesn't necessarily apply to AI systems.