I was thinking that as well but it couldn't have hurt them to announce future plans for more value to the service to, y'know, ease the blow of the price increase news. Although I don't see any 1P AAA games being Day 1, maybe they'll hit the service six months later? Still think that's a bad proposition and could eat into B2P sales revenue but, hey, I'm not running SIE so that's little of my own business.
Did think that they could add more 1P AA games Day 1 to the service; problem is Sony doesn't have any internal studios making AA games. Not really, anyway. Maybe they are working on some with 3P through XDEV but since they haven't openly talked about any future software plans 1P-wise post-Spiderman 2 aside from GaaS titles, then we can't even say that is a certainty.