If "fate conversion guide" means "a guide to convert existing EP characters to the Fate Core mechanic", maybe that would explain the crunchiness of Transhuman's Fate ...
In a crunchy game like EP, gear implants and whatnot can play a major role in defining a character - it's always good to have a background, but let's face it, you can perfectly play an empty pile of stats and have fun. On the contrary, Fate goes the opposite way. Characters are very much story-driven - It is more interesting to know how you got that cyberarm than which options you chose to incoporate in it.
I guess it can be quite hard for a player to let go of all this when converting her character to Fate. Maybe the character will feel a bit empty, hence the sub-mechanics to keep a bit more of the crunch than most other fate games.
-- just my two cents --