Someone else was wondering if this was a parody, I think they might be right. There is so much funky with this, it does feel only half serious. For me it started with 'Book from San Francisco'. I clicked on the 'Boston' button, and it shows this weird top status-bar drop down thing which flashes the message: 'Going to "Hahvahd," perchance?'. What? Then the browser starts, a little bit too slowly, scrolling itself dow…
I think they took "mobile first" to the extreme, and disregarded desktop. I imagine that giant calendar is pretty cool on an iPad. It's not really responsive design if you optimize only for devices and not for desktop as well.
I honestly don't understand how website trends can devolve so rapidly and radically. This blunder may well end up costing them millions of dollars in missed sales.