This is what I thought before having the printer in my house.
Indeed, I don't doubt you've spend some though on this - but the apparent immense difference from your screenshots is worthy of a troll posting :-p. I hope we'll get more input into this, I never used dpp and can only tell about the acr side. It's not like Canon has some secret anti-noise weapon hidden in their cameras or post software.
Edit: Imho you should open a new thread in the postprocessing section about it, few people will this off-topic issue in a "cr2 structure" thread.
if I were a troll would write in the Adobe forum.
I think is not off-topic. From the page linked in the first post:
"Why writing a document to explain the CR2 format and why not just asking to Canon ? Canon do not want to release the official specification of the format for "Intellectual Property" reasons."
People think adobe can not go wrong, it is taken for granted. It is much easier to accuse me to be a troll.