"Not every" is not the same as "none" and the discussion is about the majority, so I think your refutation is only of the absolute case and not of the original premise.
Let me put it this way: If I responded to you with "Why should I bother listening to you because you constantly make bad faith arguments" you wouldn't treat the question seriously because (I assume) you do not constantly make bad faith arguments.
It's not that there isn't an answer, it's that there is a problem with the framing of the question itself that should be addressed by the person asking it first.
Rust would be overkill for most web applications.