This is supposed to be a phone Richard Stallman can use. A phone that doesn't betray your freedom is more valuable than a phone with a PDF viewer, at least according to some people.
At the same time, the whole point of free software is that you can hack on your own computer. If you need some missing feature, you can just port it over from Gnome. That can be either exciting or annoying, depending on whether you have a hacker mindset or a consumer mindset. They are banking on enough people having a hacker mindset.