That doesn't change the fact that some business models are more abusive and deserving criticism than others, though.
Well, yes and no. When it comes to movies in general and movie adaptations of books in particular, like recently the Hobbit, number one complaint I heard (and expressed myself at times) is that they're so desperate for money that it's pathetic, stringing a short book for three movies ending in a way that ensures people will have to go to the cinema not just to continue watching, but also to rewatch the old movies upon release of the new one.
From what I can tell, the sentiment for now is that it's pathetic, not abusive.
The biggest example of this was the "rerelease" of Infinity War to add a couple new scenes, and charging full price for people to rewatch a multi-hour movie for 5-10 mins more content.
I would say that in almost any business there is always small amount of people who intrepret the pricing and/or the business model of the business with hostility. I think it is quite natural - people would rather not pay for things. However the majority of people are not the ones bitching loudly about it, they pay for services happily and are somewhat content & quiet. The small minority bitches about it and that minority is often quite vocal.