I think that’s not wrong, but rather a completely valid consideration for any adaptation from one media form to another.The movie is not the book. Any movie will not be the book. It is always the wrong question to ask, "Did the movie succeed as a successful representation of the book?"
And this is ALSO a valid kind of question for adaptations.The question should always be, "Did the movie succeed as a movie?"
The answers you get to each help determine the quality of the media you’re consuming and the skills and mindset of the people involved in the adaptation.