I think the process to create just one is tedious. I am not certain with pandemic and production time they want a lot of volume. One other thing to realize is that this is just one tiny community worldwide, we don't really know the exposure they receiving outside of here.
I did not even attempt to request a review sample, the one I reviewed was a blind purchase, and it wasn't even going to be reviewed by me, but it inspired me to give it attention. My review is quickly climbing up the charts of my viewed reviews.
The surprising thing to me, was that this has been out so long and is only now really gaining momentum.
I think I read somewhere that they only have one person assembling them by hand. One of the denon's managers was making a comment about the 9200 because they changed the amp or some piece of testing hardware and didn't think to tell her and she reported production problems, they halted and discovered the amp or whatever it was got changed and she was just picking up the slight changes of the hardware.