They sure are... but when you think about them that way you get all messed up.
No need to ever think about the measurements involved in mil-rad..... simply use the reticle as a reference and dial the measured necessary adjustment.
Use the 1":100 yard ratio with MOA or IPH and do a little quick math....
Actual shooting makes this WAY easier... but there's not too many guys who actually shoot that can skullphuck this stuff to nearly the magnitude that couch-bound ballistic program jockeys can.