The iPad Pro is a laptop replacement for many:
Doctors
Dentists
Real Estate professionals
Outside Sales
Upper Management
Music Executives
Artists
Actors
Teachers
Truck drivers
Customer Service
Repair Techs
Small business owners
Bakers
Chefs
Clerks
Drivers
Waiters
Farmers
Ranchers
Attorneys
Social workers
investment planners
day traders
Marketers
Nurse
Pilots
Judges
Political scientist
HR staff
Retail staff
Economist
Vets
Construction
General Contractor
Installers
ect, ect, ect, ect
I'm one of those professions on that list, and I absolutely cannot replace a laptop with an iPad (any type) for my work. My wife is another of those professions, and she can't either.
I don't mean to be rude here, but I don't understand why you'd think you're qualified to say what people in dozens of different professions do and don't need to do their jobs.
I have an iPad Air 2, and it's great for what it is, but it's a million miles from being a laptop replacement, for me, either as a personal or professional device. At a MINIMUM I'd need: file system, usb port(s), ability to run multiple instances of the same app, ability to drive external monitor(s). A MS Surface would be getting close, but an iPad? Not even close, as currently constituted, and that includes the pro.