Again, i understand your point, but first, we are still to be confirmed if it does or doesn't have such codecd, and if it doesn't, it is probably to avoid licencing, which, as everything included in the console, raises cost.
And just being compatible with HDR10+ is about the same as DV, unless I'm mistaken, in fact most people probably don't have DV certified TVs.
I also think the time when consoles were the main media center are gone, so chances are that these things are quite low on the priority list.
So while i understand some may be disappointed, if that ends being the case, truth is that this is a mainstream device, so there's no justification in increasing the cost... when this is something that usually caters to people who spend quite a bit $$ on their set up, so they may already have a uhdbr player, a receiver etc