I do, and the comments you refer to from the weekend were around this. If those possibilities are somehow in doubt, or under threat from others, it is our duty as policy-makers to explain them to people as best we can, so they have a clear understanding of what is at issue rather than something that may be motivated by something more political or partisan in certain settings.
I think economists understand free trade so well they almost treat it too simply. Of course it's good, but to those who have to go through the adjustment it sounds like they don't understand the situation on the ground.
We know when we liberalize trade, people's lives change as a result, some positively and others negatively, but the entire nation benefits. It's that second part that often is lost in those discussions. Our income growth allows us to provide cushions, and safety nets, and so on to help the transition, just as we're doing at the moment to help the transition from the energy sector to the rest of the economy.