The only real case I can think of where people like thin clients is when they move between stations. I worked at a hospital that used them and it was a fantastic solution. A doctor/nurse/whatever could walk up to any station, beep their ID, and a couple second later their session would load up. It was a huge pain in the ass to build and maintain though. These new devices might actually have a benefit there. Managing W365 through Azure/Intune is leagues easier than managing Citrix with Windows VM pools.