How on earth would it get in the way? I've been using it since mine came on the first wave of shipments and not once has it gotten "in the way". In the way of what? It hasn't once reacted to my palms, even when resting one hand on it to be near the keyboard while using the trackpad with the other. I have to say I do dislike the force touch trackpad in general - it's just not firm/reactive enough, and the click doesn't react as fast as it would with my Late 2013's standard-click multitouch trackpad when working quickly. Can't do anything about that, though, unless I want to stick with the 2013.
Really, at the end of the day, if you need a quad core CPU and/or a GPU, you're getting a 15-inch model, and it will be plenty portable.