[davidmanze]

In the Pentax DNG there IS the model name of the camera. And software therefore CAN adjust camera profiles for the RAW conversion.
This is not rocket science, Dave :-P

And you are confusing RAW camera profiles with colour spaces? Why?

And how does your printer cope with the extended ProphotoRGB colour space? I bet not that good. But as long as you like it on your screen?

  At least with Pentax's DNG you do not have to wait for a FW update every time a new model comes out ....... just for some so called camera profile .....

"This is not rocket science, Dave :-P"

  I didn't even mention Spacex !! 

  I wasn't confusing RAW profiles with colour spaces ..... I was just on a ramble about red saturation ........ which is one of my pet hates. 

  As it happens I've just bought a new A4 Epsom ET 2710 printer/scanner with ink tanks ........ 169 euros ..... resolution 5760 X 1440.
  ..... included you get four bottles of printing ink each containing 65 ml  ..... 260 ml in all, (that's more than a standard beer in a bar) each replacement bottle is 10 euros .....
   .... so no more of those scandalously priced cartridges and no temptation to use TPM inks.  Yay !! ......but man is it slow. 
  
 https://www.flickr.com/photos/124690178@N08/48851159932/in/dateposted-public/

  The above shot printed great ..... actually this printers sharpness tests any noise in the image far more than my last Canon did !!

Flickr's red flower group;

https://www.flickr.com/photos/jakza/47989201451/in/pool-redflowers/