Radar & camera can be degraded by snow/ice buildup. A grate that lets wet snow in is also going to be big enough to let rocks and other debris in.

Like snow or ice buildup causing issues with the camera, radar, etc.

BD is far from bullshit. I used to work across the street from them and saw them testing robots countless times in the parking lot and surrounding area. They were also nice enough to give me & a bunch of coworkers a tour of their labs. It’s pretty darned impressive what they’ve achieved in 3 decades of research. This recent news story shows a lot of the capabilities of their current generation Atlas robot.

You should check out this news story. It gives a lot more detail about their Atlas robot.

You should see just how far Boston Dynamics has progressed. They’ve been working on it for literally decades, and it shows. They may have humanoid AI robots working in automotive assembly lines within a year or two:

Can we put him in a jail cell next to Ye?