This might be the left hand not knowing what the right hand is doing.
This type of publicity builds up demand and excitement in collectors
(you're going to buy now aren't you, don't pretend) and may very
well be good for Hasbro, but their legal department may feel quite differently,
or even that it violates their intellectual property (the copyright to characters likeness). Its routine to send down cease and desist letters these days - they really aren't worth the paper they're printed on, but most people comply because its not worth the expenses to fight it.
On the lookout for MISB Headmaster Highbrow, Takara or Hasbro. I'm sure I could make you a sweet deal!