Eh I'm anti touch screen controls, but as a motorcyclist driving in a foreign country relying on voice directions I need the visual input too. There's a big difference between audio only directions for a spaghetti junction and being able to glance at the visual and combine that with the audio.
You take your eyes off the road all the time doing head checks (blind spot checks), so long as you're not staring at the map I think the benefit of being sure about where you're going is safer