Because I just don't buy Pike in his 50s in the Cage or pushing 70 in the Menagerie.
Did you miss my post above? Anson Mount was 45 when he appeared in a season set 3 years after "The Cage." Therefore his Pike would be around 42 in "The Cage." Which is exactly halfway between what Jeffrey Hunter's and Bruce Greenwood's ages would've been.


And this novel was published way back in February, 2006 (and probably written in mid-to-late 2005, not long after the TV series ended). Incredible creative coincidence, here.