This is just stupid. His Misses was roasted by a comic who's job was to roast Celebrities. This pretense that this is some everyday insult or attack on someone's Ms. Is silly at best.
It was a joke. Wasn't even a mean one. Compared her to the hottest woman with a buzz cut. Her and Will's insecurities are on them.
Not only will such jokes be at the next Oscar. I expect this to free comedians too become even raunchier and more dating. Daring someone to walk on stage. It's the Smith's who'd end up the losers in this episode.
And they are already losing. As they should.
If you don't like a Comedians joke. Heckle him. Or get up and leave.