It's just a tight platformer with a small twist in the movement mechanic, that's not "a revolution of game design".

Frankly, Outer Wilds plays like shit. The controls are extremely complicated and difficult to wrestle with. However, that really suits the exploratory nature of the game. However, in terms of game design, Outer Wilds is clearly _far_ more interesting and revolutionary than Celeste. Totally physics-based 3D platformer and space exploration game on a time loop is obviously far more mechanically interesting than a 2D platformer with a restricted mid-air dash...