Hi Ronald,
the octopus should be purple.
I think the problem with this is that it can be confusing which purples were originally purple and which of them were black and have to be corrected. So the often-quoted wedding photos might be difficult to fix in Photoshop if the groom happens to wear a purple tie. Or if ten guests arrived in purple desses and another ten dressed in black, and of the ones dressed in black five wear synthetic and another five natural cloth. Of course this is a bit of a borderline case, but the main problem why people are freaking out is that the resulting behaviour appears somewhat erratic.
Apart from the usual problem with overhyped products: if your expectations are X, and the product delivers only X-1, then your disappointment is 1, but if your expectations are 10X, then your disappointment is 9X+1, which is nine times more than the product delivers. So in hyping a product you almost guarantee you're going to be disappointed big time.
Philipp