Sounds like someone who doesn't need a pro machine: doesn't use the SD slot, so not a photographer. Doesn't use ESC, so not a heavy terminal user. Doesn't need RAM for VMs or for 4K
The docks are a good solution for local drives and wired network, but---this sounds like someone who doesn't need a pro machine. Some of us do. Maybe Dell sells one.
It's primarily hobbyist that use SD cards. Of the subset of Mac users that have Macs, how many of them actually use the SD card slot? I'd imagine a very small percentage and they probably have the data to back it. Most people just shoot on their phones. Flickr data backs this. Rank 1, 2 are all camera phones.
With the introduction of UHS-II (last year I think), SD cards are much faster than compact flash now. If you're not shooting directly to a portable hard drive, that is.
"I’ve never used the SD card" - stopped reading right after that. Most common use case in my family is to plug SD card from DSLR and import into photos and view it in all the retina glory. I still don't get why was the need to get rid of SD card port .