Nothing you're written disproves that no one wants it, if anything the fact that nothing really supports it implies that it's not a valuable feature that people are clamoring for.
Given how popular it is in modern console AAA gaming, which many people do play on PCs, one can reasonably expect that any studio desiring to target high contrast gaming — a valuable niche for stealth games, where a bright torch should absolutely stand out brightly against the darkest shadows, as well as star exploration and anything with landscapes or specular highlights — would like to be targeting HDR on PC, if only to simplify their cross-platform build and test pipelines, but cannot due to platform barriers that don’t exist for consoles.
>Given how popular it is in modern console AAA gaming
What are some of the games where it's necessary?
You’ll have to do that research yourself, apologies; I haven’t looked for that data and so I don’t have it available for you.