True, this is an opinion but I am guessing you don't know my background. And having some expertese doesn't guarantee my opinion is correct. But I guess I can say I am considered enough of an expert to be asked to speak on panels about the game industry or serve on juries for awards. And you are right it is a complicated question.
Since I am completely embarrassing myself:
- Review of a DRM free game I sold in 1980 https://archive.org/details/BallyArcadeAstrocadeArcadianAltS...
- That you tube link is pretty old, I was on a panel at Games Beat this year, I think because a more interesting person got sick.