The problem with the iPad Pro is that it seems it runs iOS.
You *can* be productive with iOS, maybe... but the ability to run a full desktop environment is still something many will want to see. Including the corporate market...
That much Microsoft got right (eventually). The current crop of Windows tablets run plain old Windows Desktop, and you can use the wealth of applications that have been available for a long, long time. It is the convenience of a tablet form-factor wrapped around the same laptops that have been serving people so well for so long.
An iPad Pro running iOS will require people to evolve in order to be as productive as they were with a MacBook. At best.