He made senior chief and is probably a COB (think CMC) by now.
There's little he could do to 'smash it' without looking like a self-entitled Ensign throwing his rank around, which is what the Chief was baiting him to do. I highly doubt that a CPO who would say something like that would care or listen to an Ensign 'yelling' at him for such disrespect. Said action would've set back his quals, too, since I pointed out before we show up not qualified anything. It was done in public (hence how I witnessed it), so certainly he didn't fear getting 'yelled at.'
He played it off as gracefully as he could, The "I don't have to listen to non-quals" is just a culture that exists that you can't do anything about until you have a pin because no one takes you seriously otherwise.
I think his quote is extreme, but being an unqualified Ensign is difficult and it's certainly not something I'd like to go back to. We tend to forget the days when the only respect you got was forced military courtesies and no one took you seriously (and pilots spend this time in flight school learning to do something useful away from the fleet). You had to listen to stupid "haha Ensigns are so dumb" jokes every corner you turned from both above and below. You kind of just have to lay low, have a good self-depreciating sense of humor, qualify quickly, prove you're not completely retarded and eventually people start to respect you.