Your are correct. You did not miss anything, as it doesn't say Relative Seniority, although one could argue it is implied.
It also doesn't say DOH, nor does it say "Staple".

I have no dog in this fight, but I posted this because many seem to think
"ALPA" merger is something it is not.
Clearly the AAI MEC will fight for the best outcome for it's side as will SWAPA. That is to be expected.

I have posted previously that it matters not who acquires who, who has been more or less profitable or what individually you think is personally fair.

Most likely an Arbitrator will decide what is "Fair" and his decision will stand.
Don't get High Blood pressure over something you cannot control.

Again best wishes to all.