This Xbox direct (along with the upcoming Starfield deep dive) is for FIRST PARTY games launching through June, genius.
Spiderman 2 and the Horizon DLC (if you want to consider that a 'new game') are literally the only 1st party software even confirmed for PS5 in 2023.
That trailer you speak of is full of third party multiplats and/or timed exclusives..which is fine, but they don't have the added appeal of being in a service like Gamepass day and date (yes, value matters).
Contrast that trailer to the 2023 Gamepass lineup of Starfield, Redfall, Forza Motorsport, Minecraft Legends, Elder Scrolls Online, Stalker 2, Diablo 4, Atomic Heart, Wo Long Fallen Dynasty, Lies of P, Ark 2, Hollow Knight Silksong, Age of Empires 4, Replaced, Planet of Lana, Last Case of Benedict Fox, Cocoon, Flintlock, Eiyuden Chronicle Hundred Heroes, Warhammer Darktide, Ghostwire Tokyo, Texas Chainsaw Massacre, Way to the Woods, etc...just incredible value in comparison. No contest.