Newlife syndrome on that dev experience.
No new content = People lose interest, that's how the cookies crumble.
What's interesting about your restaurant analogy and that you're not apparently willing to understand is that it's human nature to be angry to only receive (although good) appetizers if you've paid the price for and been told that the steak is coming. When you can't even hear the steak begin to cook in the kitchen.
Yeah, you leave the restaurant, but you're also angry, because you have paid a price for a good steak and been served appetizers. For months, in hopes that the restaurant will get "better" and serve the steak. Only for the chef to only serve more and more complicated appetizers. When most people are here for the steak.
EDIT : I'll also add that it isn't completely dishonest to think that the chef is "milking" clients that are in the restaurant and fell asleep, therefore not noticing that their money is being taken for appetizers. Of course when they wake up, they'll either see that their money was gone and notice that there are only appetizers, they'll most likely leave, or if they're content with the appetizers, they'll stay.
Also : Wouldn't you refund a game on steam you payed 10 dollars for if it had only the tutorial ? It's advertised as early access, but there isn't anything more than the tutorial, a more and more in depth tutorial, true, but 3 years for a tutorial is too much.
Reminder that it has now been 2 full years since the last addition to the story was made (not counting slight remakes of scenes that were already there)
EDIT END
(I won't be furthering this particular topic more, I honestly think you are blind with trust for Crush, and I'm not saying it's a wrong thing, since you also seem to be a Patron, but to genuinely say you can't understand our opinion you are either dishonest or very bad at understanding others, which would be quite strange since you seem to understand the "struggles" Crush goes through.)