Why does the Chrome OS team do anything the Chrome OS team does? They decided the best idea for low-end hardware is to run everything as a web app. They decided to make it practically useless without an Internet connection because clearly no one will use an ultraportable somewhere without Internet access. They decided to develop their own distro mostly from scratch because contributing to an existing project would be too easy, to useful, and would get them too much goodwill. They decided the best way to make the system easy to use was to split your files between local storage and the cloud so you don't know where anything is.

It's a stupid idea from start to finish. You shouldn't try to make sense of it.

And it depresses me. Its success demonstrates that Linux desktops could catch on in the mainstream market just fine if they had the marketing budget, brand recognition, and vendor support of Google. This team of idiots could have ended the hegemony of Microsoft and Apple for good.