I'm not saying you shouldn't ever raise this sort of thing as an issue (in general I think issues should only be for bugs, but the annoying reality is there's rarely a better place for discussions that get visibility), I'm saying the specific content of the message is the problem. There are ways to critique the usage of AI and discuss alternatives that wouldn't be an issue.

For example,

I see a lot of AI code is used in this repository. AI code is bad because*(reasons the user believes it is bad here)*. Could you please share why/what AI is being used for specifically so we can try to remove the necessity?

Perhaps more maintainers are needed, maybe someone more familiar with third party libs being used could mentor, etc. From there it really depends on what the response from the maintainer is.

What's not helpful and never going to get anyone to change their opinion is just saying things like "when will @mention see the error of their ways". As humans we respond to this by digging our heels in, which as seen in the issue the maintainer did by becoming less transparent about where AI is and is not used. Had the reporter taken a more diplomatic approach they would have been more likely to get the changes they wanted.