I agree with you and the other person who replied. I also see how UIs that have become hotel-room-like are similar to auto design. They're converging on a mean that is efficient which limits uniqueness.

I feel like there's a place for being unique and place for being an efficient hotel.

Social media sites, ex forums used to have this uniqueness, now they're consolidated hotels for efficiency (not necessarily user friendly efficiency unfortunately).

This site is also a good example of being purposefully painful and bland even at the cost of hostility towards impaired users, but I guess it's unique in that way.