In addition to what others have said, I see a budding revolt against "millennial modernism" here.
For those who haven't heard this term, it basically refers to the Apple aesthetic: sparse, minimal, utilitarian, and clean.
Flat UIs and Material design (out of Google) are other examples.
This ad is basically a millennial modernist manifesto. Down with complexity. Down with variety. Simple, clean, minimal.
Contrast this with the noisy cyberpunk aesthetic that was pretty common in technology before Apple 2.0 and Jony Ive and can still be found in the gaming PC area, or the 80s-90s skeuomorphic aesthetic that dominated UIs until the later 2000s.
When Millennial modernism came to prominence it was itself a revolt against noise, clashing styles, and overwhelm. I personally liked it for that aspect. But I can definitely see how it can also be soulless. IMHO the worst thing I can say about it is that it seems associated with authoritarianism. Like Brutalist architecture it's kind of an authoritarian aesthetic because it comes about by having a dictator who says 'no' to almost everything and enforces a very rigid auteur approach. Once established it also tends to remain unchanged because there's not much you can do with it. "Theming" possibilities are pretty much restricted to light and dark mode.
I myself have mixed feelings (about millennial modernism not the ad, which is awful). The biggest thing I like about this style is its association with reduced cognitive load. The biggest thing I don't like is the association with authoritarianism.
Edit:
Just realized that the Cybertruck is an ode to millennial modernism, and might just be kind of a shark jumping moment for it. This ad would count as another shark jumping moment. Maybe it's on its way out.