i think it's mostly due to how prevalent fake hdr monitors are

most people don't understand it's essentially impossible to get hdr without an OLED/microLED or MAYBE VA and keep buying into marketing bullshit, which leads them to having pretty shitty experiences

It's not even implemented well in very many monitors. I think a lot of people just turn it in cause it's supposed to be "better" even if it doesn't make much of an actual difference.