The Diva will be getting some new conversion profiles. The current profiles make darker content in films like Gladiator appear to have black crush. Although developers say there is none. Earlier profiles appeared to clip highlights too much, but were better on the low end. Goal should be to find a satisfactory compromise.Have you tried out the Diva HDR to SDR conversion?
I would not be able to watch films like Gladiator and Arrival with the current profiles. (This was with the 1080P sent to my JVC RS500.)