I also wouldn't say that it's "distancing from the open source community." What it *is* distancing from is the *free software* community, which takes issues such as the rights of software users seriously. This is a prime example of the corrosive influence that the opportunist Johnny Come Latelys of the OSI have engendered on the older and more principled Free Software movement.
It is quite clear that Mozilla, in not addressing these issues from the start, cares little for them. Software design involves balancing and prioritizing. The key decisions are visible in the earliest products.
Mozilla, dependent on hundreds of millions of dollars in kickbacks from Google at this moment (and with little in the way of additional revenue streams) is a victim in many ways of past largesse, and is trapped in and fearful of loss of that revenue stream. It has begun to color every decision they make.