Why do People act like this is an MMO? It already has 100+ Hour Content and a DLC + NG+ System

Why do people are so angry over the fact that a 2nd dlc probably will not happen or that the AOT Collab is soo bad and Shadows doesnt get enough Post Launch Content? Heres what I noticed:

For a few years now I noticed that People started to treat Single Player Games as MMO Platforms where new content has to arrive every few weeks or Months, otherwise the Game is "dead", "abandoned" or "lacks new content"

Seriously this Game is massive, even after reducing "bloat" what many people criticized in Valhalla. Its a complete experience with a story that encourages you to explore this big, really beautiful world, getting stronger and engaging in combat and stealth that is so diverse and fun like never before (Yes thats my opinion)

If you finished the game, fine. Its totally okay to play something else if youre not interested anymore. That is normal for a singleplayer Game. Still they added NG+ so you can continue with harder difficulty etc.

Conclusion: Does it already have much content? Yes. Does it need additions and improvements? Here and there, maybe, and thats what they deliver

Does it need several DLCs and Changes that "save" the game or repair it? No.

The AOT Collab for example is just what it is. A collab with Attack on Titan. Why do people act like its supposed to be something else?

[Disclaimer: Of course I would like a 2nd DLC, or a 5th DLC, but thats apparently not what they planned. I dont mean to criticise anyone who loves the game and want it to get a 2nd DLC. But this is different than hating constantly and treating this as an MMO Game, and saying they "abandon" their games. That kind of thinking is so weird to me. The Game is a Single Player Open World Story Experience and still getting free content after Release. Relax and enjoy the Game, or move on. Nothing wrong with that]