Perhaps the issue is that H*** is a word that can be used aggressively as in, "Why don't you just got to ______?!" This seems like a legit thing to write someone up for. The challenge for the teacher, who may have only heard one part of the sentence, is to decide whether the word is being used technically as part of a theologic or philosophical debate or if it is being used aggressively as a threat. So, perhaps, it is just a good idea to avoid it, not because it is "bad" but because it's imprudent.
