I really wish websites would opt for more distinctive looks rather than the massive homogenization we see across the web. Everything looks the same when it doesn't have to. Things can be stylized while accounting for accessibility and usability.
I don't know what to call this "feeling" but man is it depressing. We went from replicating magazines to making unique (and often clashing) home pages to trying to appeal to the most average of sensibilities where it all becomes counter intuitive.
Probably not fair to pin this on w3c because this can easily apply to several hundred other sites.
It really does make you question why bother having a time of designers, frontend developers, project managers, etc, etc to just come up with the exact same thing as everyone else.