The form factor of the RasPi is a large selling point for me, and to have more than 1tb, it’s nice to see an option that doesn’t involve a cable or dongle plugged out of the side of the case next to the NIC port. I’m excited to try using this with RaspiBlitz, which requires at least 400 gigs for the blockchain alone.
If you like duct taping things to each other, no :)
Personally I'm appalled when people say it's easy to add peripherals to a Pi via USB. Maybe some deep fear of octopuses?
Also note that the resulting system in TFA will lose usb 3 capability, because there's only one pcie lane and you can use it for usb 3, nvme but not both.