I hope I am wrong but it's another short-coming of FCPX. I like to do speed ramps (which don't work nearly as well as FCP7's Time Remapping) and I can't add motion blur to the shot.. and sending to Motion5 is not streemlined eaither.... Bummer...
KeyFrame Interperation for ANY keyframes. NOT THERE
Drop Shadows for PSD or other GFX files (only for text)
Bad Organization of Projects
Lack of user control
(so many more)....