LOA 93 was a yes. That's why you have it.
There is a merger being negotiated right now, and by many accounts it is "the last of the mergers of the big legacy carriers".
The last time we had a merger being discussed Wolf offered us Parity +1% and it was the last time management had any incentive to offer us more. Now that DUI has merger mania, the APA said no to the first, last best offer, during bankruptcy, and it worked out just fine for them.
Don't worry yourself any, DUI is way ahead of most of us. It will pass and over the next few years Harvard business school will revise their text book examples.