To balance out the negativity here's my anecdotal input - the iPad Pro has had more impact on my creativity than any device I can remember, and it's almost entirely due to the pencil and how it's brought drawing back into my life.

That's not even counting it's usefulness for music making, etc.

I've never seen it as a replacement for desktop software - it's a different class with different user behaviors. I'm generally bullish on the form factor over the long term, and see no reason why it needs to be a zero sum game between tablet and desktop.