You're asking what the problem with excessive DRM is?
And if there's something wrong with something so generally despised?
Right. Short summary:
1, It hides a server depency to a 3rd party Amazon server, that's needed for installation (and often updates to the game or your computer), otherwise you won't get to play your game. If the server would be taken down with the DRM removed, the game will become unavailable.
2. It only serves a purpose when it's uncracked and no drm free version is available, so you won't get releases at GOG or similiar sites until it's removed.
3. It only serves a purpose for the developer/publisher (if even that). You as a customer have no benefit of it.
4. If if implemented wrong, it can effect the performance of the game.
5. It can limit modding of games.