The objective is very much to stop non-free software. It always has been. It's not secret - it's explicitly why the FSF exists.

And that's a good thing, for the most part. Someone needs to hold the hard-line stance. It'll never happen, but it pulls things in that direction. We're all free to do what we like and use whatever software we choose, and part of the reason we have that choice is because the hardliners refuse to budge.

It does mean they make unrealistic demands and occasionally hold back useful functionality, but it's better than not having them around.