I disagree with that assessment. I do think that Metroid Prime was a good way to bring Metroid into 3D, but it has key differences from Super Metroid. Samus moves really slow compared to Super Metroid, and has much more restrictive jumping ability. There is also a much larger focus on gunplay, even if most of that comes from the transition to 3D space. The perspective in Other M feels like a more natural progression from 2D, Samus is almost as speedy and even more agile, and the gunplay is reduced to simply aiming in the direction of enemies, which is basically how it is in Super Metroid.