that video was fascinating and depressing to watch at the same time. I know it's not apple to apple comparison, but I feel like 30 years of computer progress should've put us in better place in terms of ease of app dev.
It does seem like we found all the low hanging fruit very early and if we are being honest with ourselves have not discovered much in the way of profound ideas since.
But in terms the video here, if you have been around the UI space since desktop apps and are familiar with modern FE frameworks it does seem like we have gone backwards in many ways.
The commonality with these systems is the somewhat ubiquitous interface. I think this is why power users love the command line. These HCIs reduce the cognitive load of the application model where there are wildly disparate UIs to deal with on a continual basis. The growth of "web apps" has made this exponentially worse on the user because they're not bound by widget tool kits.
I also see modern markers to support the claim. From what I understand, in China a huge amount of activity on smartphones that we would conduct through various apps, they conduct through WeChat and WeChat bots. They do this because it's more convenient and my claim is this is the normie's equivalent of attempting to push all their computing needs into Emacs.
Unfortunately, Computer Science continues to train people in Unix.
I'm seeing signs of a possible resurgence here with the reduced cost of PCBs, FPGAs and the like along with the increased approach-ability to the space.