All fair points. Phones have 120fps displays, but obviously can't run much at that rate. Some web pages, basic note taking, etc. But pretty much anything 3d is 30-60fps.

Consoles, hand helds usually aim for 30+

Real time rendering, video streaming etc, are 24-30.

If the nit is my phrasing, let me rephrase, the point is that it's usable in an interactive/real-time application. It's perhaps at the lower bar, but 30 fps is far from a rarity. Though not always ideal, it's certainly acceptable.