There is always the possibility that the reason they are doing this is because they had extra magenta leather left over. Maybe that's how they got the number of bags they could make.
However if that's not the case, I think since this is a prepay special edition the quality control may be above and beyond the norm.
I certainly hope so. The Magenta City was my holy grail, but I only wanted a mint one. Now that I get a chance to have it, I'm going to sell my other HG, so I'd be pretty -> if it didn't live up to expectations.