Remote desktop vs. remote display

I think you are seriously underestimating how many people have that use case.

One example: Our lab can only afford to buy one new machine every year (and our compute servers are slowly getting too old to be of much use). By being able to tap the computing power of newest, fast desktops, everyone can run calculations fast without the need for a fast computer on each desk. Our work is still mostly writing and data analysis with only occasional high computing needs, so this is the perfect setup.