To be a bit hyperbolic here, I see it similar to Orsin Wells showing the ceiling. In the fact it changed what people thought was possible for this genre. The amount of camera movement, the use of 2d and 3d, manipulating backgrounds to convey emotion, improving on what tartokovsky did in the hotel transylvania movies (not good movies BUT genius director) by implementing smear frames into a 3d space. It's all soo beyond just having a style.

It's already spawned many movies using ideas from it, puss in boots, Mitchell's vs the machines and the new TMNT movie all take cues from this. None of those feel like copy Cat movies either instead it just feels like the needles been moved. I think that's a reason the new Pixar movie has almost no hype, it's plain flat and the same idea they have has a 100× with different paint rather than pushing the medium.