I agree that the problem in iTerm2 is serious. I do not agree that having the takeway sentence in the article being false is a "minor problem."
I cannot speculate on what fraction of iTerm2 users enable this optional feature. Is it "many or most"? No idea.
I note that the article nowhere mentions the fact that the feature is optional. That would be a huge improvement.
We can disagree over whether the article is horribly written or not. My firm opinion is that it is.