I think the problem is that we are apparently looking for very different things when it comes to adaptations. When I go to see a movie based on a book, then I'm going to see the book brought to life onscreen. So I want to see the characters from the book, living through events as close as possible to what happened in the book.On the contrary, I've directly disagreed with it by offering examples of adaptations that strayed incredibly far but were still quite good, like The Incredible Hulk. Again, recognizability is not what matters. Aiming an adaptation solely at the people who already like something is redundant. Adaptations are done to bring a concept to new audiences, or to create a new work using the source material merely as a starting point. A good adaptation is one you can enjoy on its own terms without even knowing that it's based on some earlier work. You can love Casablanca without knowing it's based on a play. You can love West Side Story without knowing it's adapted from Romeo and Juliet.
Obviously things will need to be changed to fit the new medium, and because the new creator might want to put their own spin on things, but I still want to be able to recognize the book or whatever in the movie.
Now like I said before, I'm just talking about what makes a good adaptation, and not the overall quality of the new version, those are two totally different things for me.
If you don't want to actually adapt the source material, then go do you're own original thing.