I wouldn't bundle up Purism and Fxtec, as they clearly are very different. Purism is using open source OS and drivers etc, and the whole thing of Purism phone is the openness and the privacy. Fxtec is not open or privacy oriented, but the hwkb is their thing. They ship the phone with Android, which is closed source, and the drivers are too. Even if some more open Linux system comes available for the Pro1, I guess the use of libhybris (android closed source drivers) is needed. Android, as a product of Google, is know of it's way to collect user data. I'm sure that the Android on Fxtec Pro1 does that too. It isn't 'safer' Android than any other Android version (well, speaking of the official versions, not Lineage etc). Most people doesn't care about Google's way to collect user data, but the question is: How much do you care? Personally I don't care too much, but I have other reasons to be upset of Android. But if you are concerned of privacy issues, I'd suggest you to go with Purism or even some traditional phone.

edit: Damn, netman was faster