Is this KR thing still being argued about? Wow!
KR's ramblings are mostly cr@p boys. His ramblings are indefensible, and for one to defend KR says more about one then about KR. And what this says is not very nice, nor pretty, and may well be indicative of character or mental issues.
As to enlargements, anyone that thinks one can get "frikin" great results when enlarging HUGE and from a low pixel image, or even a half frame of film is one that has profoundly low, low quality standards.
And it is exceeding foolish to assume that as prints get bigger, viewers will view further away. One only needs to go to any number of fine photographic art museums anywhere to find a huge print that has profound clarity when viewed INCHES away, and it is this type of enlargement clarity that really seduces the viewer, pulls him in, and is a glorious experience. And this is ONLY possible with a very large negative, or large number of pixels, and/or large sensor.
So for enlargements, the size of the sensor, the number of pixels, or in the case of film, the size of the negative matters. In other words, the camera does in fact matter, and to suggest otherwise is to not understand photography, nor the tools used to practice photography.
This issue is black and white, so why it is debated is most peculiar, to be sure.
Now as to creating a composition (not image quality), then yes, the kit matters little, if at all.