It's in the rulebook, you can't recklessly drill the ball at the line judge, even if you're not meaning to hit them.
If it missed her, he's probably not disqualified.
Also if the woman didn't overreact, he might not be disqualified too. So they're essentially conceding that whether someone is or is not disqualified depends on bad luck of it hitting them, and also of them being weak and acting like they've been shot by a sniper.
No one said it is how someone should behave. Still makes a mockery of the event to actually disqualify someone for it.