It's not out of the question that he/she is forwarding the domain to avoid an assured C&D and or UDRP...
Think about it...how else would you hold on to ownership of this domain? Wait until the series has ended and then you'll have a much easier time monetizing it. As a super-pervasive brand right now, it would be very easy for Fox to obtain the domain in my opinion. So why would they fork over a large sum to redirect it?
"American Idol" can be a generic term - American based idols can include the White House, the Washington Monument, Mount Rushmore, Golden Gate Bridge, etc..
As long as you stick to the generic meaning, an Idol:
ânoun
1.
an image or other material object representing a deity to which religious worship is addressed.
2.
Bible .
a.
an image of a deity other than god.
b.
the deity itself.
3.
any person or thing regarded with blind admiration, adoration, or devotion: Madame Curie had been her childhood idol.
4.
a mere image or semblance of something, visible but without substance, as a phantom.
5.
a figment of the mind; fantasy.
6.
a false conception or notion; fallacy.
that represents America.
If the change was recent then I have a feeling that Fox realizes that Americal Idol is on its way out and not worth the purchase / asking price.