I do get that some detail could be lost with DV, but overall I still enjoy it more. I'm still confused as to how DV could be brighter than HDR though. Especially if my backlight setting is so much more on HDR. I guess if they for some reason coded HDR to be very low and DV to be very high.
The actual per scene brightness will be adjusted based on the metadata. Those backlight/oled light levels allow you to adjust the "basline" (for lack of a better term). The actual brightness is defined by the content.
In the case of some TVs l, like the LG oleds and Sony's X1 extreme TVs, HDR10 will also use active HDR on HDR10 content to create dynamic metadata on the fly, reducing the gap between HDR10 and DV content. This could potentially bridge it enough to make HDR10 disc more appealing than streaming DV.