Yes, but based on an subjective judgment. I am the author of the blog post, and I tried to do my utmost to emphasize that my judgment here is highly subjective, using phrases such as "for my own pedantic notion of correctness", and "I cannot in good faith claim that [problems with block comments] occur all that often in practice". I try to make it clear that I'm not surprised, offended, or annoyed that most languages support block comments.

How do you think I should have put my words, to make it clear that my opinion here is not intended as objective fact, but merely a subjective take on a language design question?