Yes, the fabrication method shown is rapidly being replaced by castings. The disabled jeweller is certainly very accomplished.
I've done quite a bit of claw setting, and hand fabricated quite a few collets in my time.
Here are some simple earrings I made a few months ago and took a photo of:

ETA: The photo was there for about ten minutes, but now isn't.
Edited By Bill Phinn on 21/01/2019 00:05:56