It's a horrible idea. In a crises the last thing you need to be doing is searching through pages of soft buttons looking for that critical control vs. reaching out to a physical control that's always in the same spot no matter what.
Everything had a place, and that place was always the same day-to-day (barring infrequent redesigns of some aspect or other, but old-school buttons-and-knobs control panels sometimes see revisions as well as the reality of what they control changes over time).
But for things not really needed in such a situation? Or even access to things that aren't available within reach otherwise due to size constraints? A touchscreen might be the best solution.
There's probably more total sensors in the reactor than there can be physical dials for in a room of that size - there'a probably already some level of ordering which are the "important" ones, or which are at prime real-estate by the operators on the panel and not the other side of the room.
There's lots of steps between "Huge array of switches and dials for every possible thing" and "Single ipad in the middle of an empty room", after all.