Frame Rates - A utilitarian Perspective

[SvennoJ]

It seems that graph only takes response time or lag into account.

Frame rate needed depends on movement. Bigger screens and faster moving objects require higher frame rates to eliminate judder. Your eyes track and follow moving objects, the frame rate needs to be high enough so the objects don't 'skip' across the screen. The speed you can comfortably pan a camera at depends on frame rate.
You can watch a 30fps youtube video in a window and the frame rate is fine, stick the same thing in VR glasses and judder becomes a big problem.

Brightness also plays a factor. The higher the brightness the more you notice judder. Although low brightness doesn't make the skipping problem any better, it makes your eyes blend more after images together.

Higher frame rates will become more important with large size 4K screens and especially VR glasses.
Back with Doom on a 10" screen 10-12 fps was considered good.