Nope, no BDMV Playback (last checked January as it basically is the Oppo with altered software and some hardware changes), so your are out of luck unless there has been a firmware that out of the sudden is piracy friendly. As said, any UHD BD DV Player could play dual layer streams, it is just they simply do not play them from anything else than a physical disc encrypted disc. The SoCs and DV chips are pretty much the same everywhere, they have the hardware but the software does not allow you to leverage it. Sure maybe some modified Firmwares might show up. Possible there are other players that can play rips, but never heard so far of any. Time will tell, sooner or later some players will surface - but still the same problem: you have to play it over a player not your mediacenter box.
HLG? Well it is fact that is just two fixed non linear gamma curves that take the stream as broadcasted and output SDR and HDR on HLG enabled TVs. And TVs that do not support HLG will just take the altered base stream. Read up on it. It is the worst of all possible options, though this approach will work for sports where color and proper lighting are of no real consequence anyway and with some talking heads it will also be no issue. Anything else, it fails when it comes to quality and what a higher dynamic range is about. Read up how it works, what it does for yourself. If you like it, good for you.