Agreed that it's generally intended to be condescending, but when the rest of the comment is reasonable I'll assume good faith; maybe the person has seen it use

Agreed that it's generally intended to be condescending, but when the rest of the comment is reasonable I'll assume good faith; maybe the person has seen it used elsewhere and doesn't realize how it comes across. Or maybe they even know its condescending, but not that it undermines their other points. Either way I felt a bit of push-back couldn't hurt.