I think the point is that you can't trust third party encryption/privacy statements anyway. If you really care about your privacy you should encrypt your files on your side. There are plenty of solutions to do just that.
Everything else is the equivalent of the "do not track" header, security through homeopathy.
Privacy policy / TOS is something you can base legal cases on in some countries and something certain organizations try to check. And I just have difficulties to trust companies that simply don't say anything on the matter. It doesn't seem to you like they're hiding something?
Though yes, I agree that nothing you don't do on your own is really trustworthy. That's why I don't use online storage for storing confidential data, heh. Only puush for the little things. (what's going on with Puush anyway? They've been silent since "going down for maintenance briefly" in September). I guess treating internet as if there is no privacy is for the best.
Everything else is the equivalent of the "do not track" header, security through homeopathy.