It's a necessary switch in the right location and protected by a cover. Of all the controls on the flight deck, this is pretty low on my list of concerns. I bet nearly all similar large aircraft have something pretty much equivalent, given the obvious use case.
It’s probably quite far up the list for those who ended up smashing into the ceiling. Assuming this was the cause, it’s a problem, though maybe less so than other shite Boeing systems in play at the moment (eg, the de-ice situation).
