In my opinion, Canon should include touch capability on all future camera LCDs -- with a menu option to disable touch functionality. Then everyone can use it or not use it as they prefer.
I love the articulating screen. Had one on an A80, G12 and now 70D, and I can't imagine life without it. In fact, if/when I move to full frame, that will be what I miss most (unless -- crossing fingers -- Canon introduces a full frame body with articulating touch screen). If I was a pro that was hard on my gear, I might choose a fixed display for durability.
The articulating screens on all three of my cameras work like the day they were new, despite some pretty hard use (elk hunting in icy temps, snowboarding in even icier temps -- even dropped in the snow a few times, desert sand dunes with fine sand getting in every crevice, etc.). It would not surprise me if they were durable enough for hard pro use. If not, I don't think it would take much for Canon to "ruggedize" them.
Anyway, I'd want a durable articulating touch screen on any future body I own...