Where's the terrain humans struggle with? At the most extreme it climbs a small mound of rocks and gets stuck.
It's cool we can build something that can do that semi-autonomously but it's lightyears from being as capable as anything biological.
The work Boston Dynamics does is extremely impressive, but they've been at it since 1992. Each year they make small and incremental changes. But its still a century away from a human, dog, or cat. Not a revolution, just slow and steady evolution of knowledge, software, and hardware.
I don't disagree that it's still far away from a human in good shape, but there are certainly a significant percentage of people who wouldn't be able to walk over that, or would slip a few times while doing it.
That sort of terrain is also no joke if you have to traverse it for large stretches, even for athletic people. It's very similar to mildly rough mountaineering areas and that will wear you down quickly!