What really stinks is they didn't NOTIFY anyone of this, it had to be found by an eagle-eyed person looking at their web pages.
This is more like some suits in a room sitting around smoking cigars going
"you know what? Let's pull the rug out from this niche of our customers.... that'll be fun won't it? Can you imagine the crestfallen face of Mr. Doe and his stash of points and his little plans... HAHAHAHAHAHAHA. God I love this job, OK who can we screw over next."
It also stinks to a lesser degree, the short timeframe. I mean, I could see it if they were ON THE ROPES...about to go bankrupt... no time to think....got to jettison all the weight in this balloon NOW!
But Delta is fat with profits, and there's just no excuse for this kind of Mickey Mouse mistreatment.