Sure but its pretty rare and even rarer for first-party games? I do agree none of this matters if these 'number of games' were all unannounced.
It will be interesting to see if Sony also skip their big anniversary.
Nah. First parties absolutely cancel games all the time. They probably cancel them more often than third parties do, honestly.
The difference is that first parties can get away with waiting way longer to reveal their games than third parties can.