This sounds like a real advantage in the AI's favor though: It can focus its attention on a lot more things simultaneously. It's not just a UI difference; the AI is actually better at this, like how a pocket calculator is actually better at division than people. This latter bit we just accept; we don't defend humans by saying the calculator is cheating because it isn't writing out the calculation by hand.

Similarly, robots are physically stronger than people at any given task you can think of. That's a real advantage of them.