Conutz
I'm actually a "Pro" user and have four iPads, one of which is provided by the corp I work for and is exclusively used for their content and communications, it's an Air2 (I don't see any upgrades with that one for at least two more years). My personal 10.5" is used for app development and Apple Pencil (great new feature), while my older personal Air2 will be retired and passed on to another user (the other is a mini retina and works great for my grandson to use when he's with me).
For text and app development I use a 2016 13" tbMBP and that is far superior to all the speed and features of the latest "Pro" but I have different needs than others. So I hope we can agree "Pro" is simply a marketing ploy and not really a definition of who the machine is marketed to.
BTW the 10.5" is a better and more advanced device than the older Air2, I'm not arguing those points.