I think the point is not if the text can be interpreted charitably, but that the usage of AI text in what is intended for humans to read causes mistrust about where else corners could have been cut, on what is security-critical software

And even the charitable reading is not a good indicator. There is reason things are getting pulled out of kernel and more and more userland services are used, it is because we have finally come to terms that secure software is hard and better hack as little of it trusted with the whole system as possible.