Still not buying it. The value of the Maxes they own sitting on the tarmac has plummeted and all the capital they consumed now has a big fat zero ROI (negative, really, because they still need maintenance and interest payments). If airline X has to reduce flights because they can't fly them, and airline Y doesn't, those flexibility-demanding, well-paying business pax will migrate to Y, and it's Y who will reap the most gains from the sudden reduction in competition.

And automated rebooking is a fantasy. Sure, the airline will try to default you onto some other connection, but I've always ended up talking to a human afterwards and picking out a better alternative.