We already knew they had this cpability. It's not particularly interesting without nuclear arms, because there are a finite number of them and they can't make them quickly. Once they've shot them all, they're out. If they don't couple them with nuclear arms, then the most they can do is take out ukranian infrastructure (a few bits at a time), then not be able to use any more when they're done

We all know the war has been going badly for russia but the US isn't concerned with non-nuclear armed hypersonic missles.

It does matter if those missiles hit their intended target, or if they use the same guidance as the rest of Russian armament: “fly in this general direction”. We don’t know if Russians managed to hit any military target this time.

Yes, I'm aware. These were nuclear capable, not nuclear armed, hence my statement.