UAL's stock price is not diving.
It dropped to 68.50, has come back up to 71, dropped back to 70 today.
Keeping in mind, of course, that a year ago, when CEO Oscar Munoz had a heart transplant, the stock was trading around $37. Since then the stock has almost doubled under his leadership.
Anyone who thinks the board will jettison Munoz for this incident is dreaming.