This will eliminate an area of friction between the U.S. and Qatar, and allow Delta to claim victory, without Qatar Airways having to give up anything of significance.
Since the agreement covers only Qatar and not Emirates or Etihad it’s unclear what the future of the Delta, American, and United campaign looks like. Qatar is likely the most subsidized of the 3 carriers. Qatar’s CEO is the most likely to say offensive things. So they’ve been the target of US airline racist attacks. Will they be emboldened by progress, or stalled by the removal of their juiciest enemy?