I’ve owned every other generation iPad since launch. The iPad Pro 10.5 is something special. Keyboard cover, screen size, split view, effortless portability... they add up in a way that has significantly changed how I use it. I rarely use my MBP away from my desk anymore. Aside from work requiring Xcode, Smart Keyboard cover + ssh client + tmux works surprisingly well (for me) for away-from-desk dev work.
I have the same tablet and the same experience. If they stopped making the iPad Pro, or something like it, I would be very much affected, because I do a great deal of real-world work on it, in places that would be much less hospitable to even small laptops.
I, too, do ssh + tmux, as well as Textastic, Pythonista, and Working Copy (git), so much so that when I showed a colleague what I did, he exclaimed in an astonished tone that the only things he thought people used iPads for were email, browsing, and games.
That remark prompted me to make an 11 minute video (all done on the iPad using screen recording, Keynote, and iMovie) of creating a Linode, sshing into it, installing a user with SSH login, logging out and sshing in as the new user, installing the latest Docker from docker.com, and demoing some of the apps I just mentioned (to fit a 15 minute time budget). The latest iPads are not toys; they can be used for professional work.
With LTE access, I can easily work almost anywhere; working on a plane is much easier than with a laptop (for me - I'm pretty tall and it's already a squeeze).
I meant it even more delicately than that. I think (a) more people thought they would be in his boat than were, just because tablets are fun and likeable and (b) as phones/laptops got bigger/smaller, and improved faster.... There is a little less need for tablets now than 5 years ago.
That's why (I think) they will get less investment, like this article.