Adaptation is just like translation: a flimsy pretext for ideologues to alter and/or destroy popular culture. These people always claim "changes must be made" in order to bring this or that media into a different language or medium, but that's just the motte. The bailey is using a popular property as a platform for either the narcissism or activism (or both) of the people doing the adaptation/translation.

Wheel of Time has proven this beyond a shadow of a doubt. One of the authors consulted on the show and tried to fight the massive changes. He even pointed to pre-existing scenes in the books that would cover any "problems" in adaptaying for television. He was ignored by the show runners time and time again.