If you think the game was a disappointment, doesn't that imply you already gave them the money? It is not a service. If you bought it 5 years ago, you don't have to pay more to play it.

But you can avoid having some information brought to light specifically because of their abuse from turning you into a DAU. If their userbase goes up as a result of this scandal it's the market responding in a manner that encourages further behavior of this sort.