First off, many of these stats are impossible to verify since many of these specs are also including internet cafe or esport center, which are getting extremely popular and all owns 1080p monitors.
Secondly, many games like CS or FPS, for esport, are played at 1080p. Don't tell me you are playing DOTA, WOW or Fortnite at 4k, I will laugh at you.
Thirdly, these setups ARRE NOT CPU bottleneck. Most of these setups are hosting mainstream card, and at 1080p with mainstream card, you are GPU BOTTLENECK... TALAM!
So, all in all, these CPU bottleneck bench with a 1080 GTX and above at 1080p, are total BS that actually matter for the 1080p @ 144Hz users, and even there, anything over 144Hz is totally useless and only matter as bragging rights.
Once again, these are not good to define Use Cases.
These benches, should be done with a mainstream card, a high end card and an enthusiast card... @ 1080p, 1440p and 2160p. As of now, these benches are useless.