Sitting too close to a 4K TV is probably not recommended and that’s probably the time you will notice the unrealistic super high details.So why have a 4k tee vee if our eyes see soft?
Example: view a night shot of a city skyline on a 4K TV with low, medium and high brightness in this example SDR/HDR. Now go outside in the night and view a similar city skyline of light up buildings, etc. The atmosphere (air pollution, smog, dust, etc), light pollution, your visual acuity, etc will have it perceive much differently between people standing besides each other compared to that image or video you see on the 4K tv.
People also don’t need to see other people’s skin pores while watching tv. In day-to-day life it’s mundane for our brains to spend time to notice every detail on another human. We will notice anomalies such as an individual having brighter skin, duller/pale skin etc but we don’t notice skin pores unless there is something unusual about it.
What 4K TV and content seeks to capture is your focus and attention and it has accomplished that. Some people report that text on a page if not a bit soft is not a comfortable experience and the eye muscles are unable to relax causing fatigue.