It's only insulting if you take it that way.

Personally, I'm not looking for reasons to get butt-hurt, and certainly the word choice of a USAFA dink in an internet posting doesn't cross the threshold of being insulting in my book.

But, you're right -- he should learn a little about the right terminology to use, especially if he's going to continue with his AF career vice crossing over into the land of the jarheads. He said "an officer behind a desk" when he should have used the technically-correct term "shoe clerk".