I think angriness as an emotion just comes up as part of the ego, but it doesn't affect you at all, doesn't take you out of the silence. It's like speakingness that happens on its own, but in this case its angriness
Nisargadatta Maharaj used to get angry all the time, and smoked endless cigarettes. But he's enlightened at LOC 720 -- go figure.
My theory is that they've transcended their ego instead of perfecting it. So they don't have "saintly" attributes that comes from perfecting the ego, but they have already gone beyond the ego and the personality. The angriness isn't coming from them, but from their residual persona that occurs on its own. You can say, they're angry emotionally but loving inside.
Hehe, I can't wait till I get to that state, I'd wish I'd have the problem of being attached to that feeling
But yeah, the attachment creates its opposite, and it has to be dropped in order to transcend the duality.
Namaste