Heh. The "50 years ago" part was an intentional stretch to add more weight to how disappointed I am. But seriously, the first demo they presented is an immediate rejection.
The first demo is a Webassembly thing that looks like any generic web thing. The next one is a cryptocurrency app that seems to have a "modern" design.
The other ones (gotraceui, sointu) seem like they might be what you're talking about. I can see how they might be scary to someone used to "modern" UIs because their information density is much higher.
Personally I'd prefer if more people treated computers like a tool, and not some kind of art installation.
I was referring to the Webassembly one. Looks like the design was largely inspired by the Material Design created by Google. Material Design is a massive failure and nobody should use it these days.
The cryptocurrency app looks good.
The gotraceui and sointu are actually decent. They are niche tools and look fine to me.