I thought this was quite well put:
Disappointed, but not shockingly so. I think the AAdvantage program is still the better of the 3 programs, just much, much less so. ...I have started flying Delta more and generally enjoyed the experience. As always, I will reevaluate which program makes the most sense for me personally and professionally and adjust accordingly. ...In the land of the blind, the one-eyed man is king, but not necessarily pleasant to look at.