I think that is the main point of the article above, and also why so many people would want an iPad Pro to actually have Pro features [1].
[1]: Yes, I know about iPhone Pro, but at least iPhone Pro have some exclusive features that make sense for Pro users like USB 3.0 and ProRes camera features. However in the case of iPad Pro, what is actually the workflow that requires a better CPU? Final Cut? And that is it basically.