This is a good point. I criticized it in another post here in typical Hacker News fashion but just to add some positivity, iPad Pro is great for precisely architects and engineers bringing CAD drawings etc because the guys pack a tablet with a large screen with them to the actual site and can intuitively work with and demo the project with their hands alone. I know this works because we have people at work doing precisely this and they wanted the big displays for ease of use and showing.

But be very cautious if you need to integrate multiple applications and maybe even those not on the iPad (like Visual Studio Code), having to restort to web interfaces or remote computing apps, terminals... Stuff exists for all of this but it's going to get progressively more painful from my experience, the more involved and "not in this single app" your workflow is.

If you stay like 95% of the time on the iPad and a very few apps in a very basic workflow (like bring a CAD drawing to the iPad before you head out), sure that's a good iPad Pro use, I think!