I think you need to learn to read between the lines here....
Read his comment again, there will be hackability there for those that want it & (ideally) know what they're doing.
It just won't be there OOTB, as it shouldn't be when you're targeting mass-market/mainstream.
I'd be surprised if they had a security framework as convoluted as AEGIS (or one at all), but that remains to be seen.

Oh and here is the original Jolla general discussion thread:
http://talk.maemo.org/showthread.php?t=85315
Let keep it there please, better to have everyone's thoughts/findings focused in the one place.