I would argue that this is just "timing" thing. If we look far enough into the future I would bet that almost 100% of regular tasks should be done not only on iPad, but on iPhone.

Human comes to work => docks/AirPlays their system to external monitor => does work in browsers/office apps. We are pretty close to this reality tbh. Mostly software is a limiting factor.

As for computer pros...we probably will be forced to use some other vendors(sad) or use remote systems for compute tasks while using our phone/tablet as thin client.

Thanks Apple for not jumping into that train just yet!