I don’t really think this qualifies as brutalism. A key element of brutalist design is the lack of the excess.

Web 1.0 was full of excess. We’re talking 3D rotating words on fire when bold would suffice. Lots of drapery, lots of window dressing.

A brutalist site would be more like the sites that have a structure, but the seams are not made seamless, and excesses are avoided... Like craigslist.