But that sort of thing fits well with TFA, where they say "look ma, no OS!" when they do have software acting like that
There are reasons why "no OS" is interesting, it does take a while for Linux to boot, I usually boot it in 20s on my virtual servers, making that 3s would actually allow me to save money. If they really were booting Linux, could process CPU intensive request by just buying an instance booting my OS and serving the request in 10s instead of 27s. But as someone said this can be compared with the not so novel approach called "applications".
So if you can boot Linux in 2 seconds, I'll agree that the annoucment is pompous.