Apple have provided Boot Camp because it's actually been pretty easy for them to do, not because it helps to sell their computers or gain them cash. If their hardware/firmware did not support it then Apple would simply have never provided Boot Camp in the first place - they would not have gone out of their way, make no mistake.
A salesman in an Apple Store isn't going to sell you the thing based on its ability to run Windows. People who buy Macs most of the time don't care in the slightest about Windows, and nobody knows that better than Apple.
Biting the hand that feeds IT
