I have to agree that this looks an awful lot like déjà vu.
Wasn't the slot swap rationalized in part because US couldn't successfully compete against AA and DL at LGA? Now that Parker is CEO of the world's largest airline, and gains a bunch of LGA slots, what does he do? Add flights to key business markets like HOU and mid-sized markets like IND? Nope.
Instead, he cancels LGA-ATL and re-starts flights to nowheresvilles like CHO and ROA (23 PDEW and 26 PDEW, respectively). Nearly all of the new adds from LGA are cities already served by DL and all are cities that US served until the slot swap - rationalized because those small towns couldn't support larger equipment. Those cities didn't make the cut in 2009 when US admitted that it couldn't fly profitably in NYC, and here they are again.
As to DCA, well, new AA just relinquished more DCA slots than US acquired in the slot swap, so that was a completely wasted transaction. Yes, US got $65 million and a GRU frequency, which DL quickly replaced for free in the next route case. All 52 DCA slot pairs are air carrier slots, so the competition will be able to fly 52 competing flights every day with mainline equipment. That's going to temper any possible high fares at DCA, except to the various nowheresvilles that new AA will continue to serve.
DL got the best of the Parker/Kirby brain trust in the slot swap, and I have to believe that R Anderson and friends were celebrating again this week.