Technically inferior Xbox One games have higher metacritic, WHY?

[VitroBahllee]

The Fury said:

Cj2i3 said:
Xbox One just makes them better, maybe not graphically. Instead it enhances these games with the controller, cloud power and snap ability. Games just are better on Xbox, and it's something ps4 will have to deal with this ten unfortunately for its users.

Input device should not determine the score of a game unless it is a defining feature (see actual Kinect games). Differences between controllers is negligible on Xbone and PS4 in basic input experience so wouldn't/should never affect a game score. Same with the 'snap' ability. A game cannot be improved by an external Xbox One feature.

So, when 360 was the only system with acheivement-like points, would it have been unfair to say a game was more fun with acheivements than without?

If so, and it didn't matter, why did Sony add trophies?