"Noah, thus far, is the only one I know of who has attempted to buy one."
What about deegggo, and the other two?

Assuming the large shipment that was claimed to ship did, the issue might be that every one has to have the f/w manually updated.
Still, there should be dozens available by now. Maybe there are, in the hands of non AVSers.
At MSRP I would have waited on the sidelines to make sure the coast is clear, but for the price I got I decided to gamble.
But that's not what you came to hear

Turns out HDMI Audio = On which I came across while going through menus turns off all of the speakers (according to the manual, dunno why the center still worked) and sens PCM over HDMI to a TV.
I did get a Trinnov setup and *thought* I was comparing on vs. off, but it turns out you have to go into setup and turn it on for each input.
I tried Super Speedway and it sounded great w/o help.
W/Trinnov I was anxious to see the narrators' voices magically rise from my below-screen center speaker, but they moved to the floor under the left speaker.
Time to rearrange those speakers.
I'm playing hooky from work so hope to report back in an hour or two.
But first more gripes.
I'm going to have to read the manual to learn how to switch inputs w/the remote; pushing the CD button changes the remote's LCD to say CD, but nothing happens at the receiver and volume control is lost.
And there's got to be something wrong w/the remote sensor. The manual says the remote needs to be pointed within 30 deg, but I have to point it a lot closer than that.
The 972 is not responsive. Using the OSD and "Quick adj/config", it takes 30 sec minimum to switch Trinnov in or out.
Using the front panel display, it's 10 s min; it takes a full 5 sec after exiting the menu for the sound to come back.
Even changing surround modes w/the multifunction knob mutes the sound for 3 sec.
I guess the volume control isn't meant to be turned manually; it's very tight.
Stay tuned.