So while I understand your sentiment I actually have to respectfully disagree. There's a difference between calling an argument foolish and calling a person foolish.
"Comparing this to a minor inconvenience is intellectually dishonest" <- rough paraphrasing of the comment
vs
"I read what you wrote, you are intellectually dishonest" <- a true attack against a person
The comment may not have been terribly civil (and that's a good reason for criticism) but I honestly don't see it as name calling.
The guideline doesn't say "don't call people names"; they say "don't call names." Here's the text:
When disagreeing, please reply to the argument instead of calling names. E.g. "That is idiotic; 1 + 1 is 2, not 3" can be shortened to "1 + 1 is 2, not 3."
'Intellectually dishonest' is still name-calling in the sense of being a generic pejorative that adds no information. So it still breaks that guideline. As shortimer pointed out, it isn't about personal attacks. Personal attacks are certainly not ok here, but other things are not ok too.
The guideline contains practical advice for how to edit the name-calling out of these things: simply shorten them. In this case, "Comparing X to Y is intellectually dishonest [or asinine]" can be shortened to "X is not Y".
"Comparing this to a minor inconvenience is intellectually dishonest" <- rough paraphrasing of the comment
vs
"I read what you wrote, you are intellectually dishonest" <- a true attack against a person
The comment may not have been terribly civil (and that's a good reason for criticism) but I honestly don't see it as name calling.