I think most people run their TVs too bright, usually because they use them in spaces with terrible lighting conditions (i.e. TV mounted too high above a fireplace facing a west-facing window). I think it's easier to control the lighting in my house than it is to make my favorite TV show look good on an LCD.
Obviously that's still a valid use case, and one where LCD genuinely makes more sense than OLED, but my issue is with the displays being touted as "OLED Killers" when they aren't; they are displays that excel in a very different set of circumstances than an OLED. If I replaced the 8 year old OLED in my basement where 2,500 nits of full screen brightness would be downright painful to look at, the RGB miniLED panel would be a straight downgrade.