This *really* backfired.
Everyone pretty much knows who Will Smith and Jada Pinkett are, many people know they're married, but not everyone knew that Jada was (is?) getting smashed by some rapper, and almost no one knew she had some sort of hair loss malady.
Now, everyone knows all of these things and Will is on camera acting the total fool.
He really should have thought that out.
What he *should* have done (at most) is wait for a commercial break, go on stage and pull Chris Rock aside and air him out in front of the audience if he felt Rock was over the line, then taken his seat. If he had done that, he'd probably be a hero today.