I have no idea what the web design of the type Jolla has, but it's getting old really fast. Yes, it looks neat at first, but then it's confusing. Crashplan recently did their update with the same style.
I'll shut up now if I'm the only one bothered by this trend.
I think it's mostly just weird because the fixed header doesn't have a border or anything along the bottom to let you know where it ends and the content begins. I see no reason for it to be fixed at all to be honest, the content isn't extremely useful. I also wish more sites would do min-height media queries before fixing elements to my screen. The header and footer here are pretty greedy with the spacing on this site.
I'll shut up now if I'm the only one bothered by this trend.