To be more precise: I think they have a fixed repertoire of moves that they can blend together and slightly tweak on the fly, but only within certain limits.

This would also be normal for human performers - touring ballet companies travel with their own flooring the dancers are used to pirouetting on.

At the 40 second mark every robot does a backflip then when landing hops their supporting leg while pointing the toe of their working leg. Which works fine and looks great! But they arrive in that pose with a certain amount of momentum and needing a certain amount of grip on the floor.

So this is a rehearsed, tested performance - not proof we’ll have firefighter robots doing parkour through burning buildings any time soon!