It's not true HDR, but then who defines what that really means anyway. I much prefer that they've gone down the route of categorising based on actual spec, i.e. DisplayHDR 400 and DisplayHDR 600 are different and you see how in the name alone, rather than just HDR.
"125% sRGB/DCI-P3 colour support"
sRGB and P3 and different colour spaces, is this a typo? I also don't think there's a TV/monitor in the general market that does over 100% P3 yet?