since "crippled" seems to be somewhat politically incorrect or embarasing, then how about another approach. and no I don;t mean replacing crippled with "challenged"
call it a KAF2-J mount since it was introduced on the FA-J lenses.
that way we can all "think" crippled with out being embarased or politically incorrect
Sadly, and pentax is as much to blame as all of us, is that they never officially distinguished the J mount from a standard KAF2 mount,
and no, J does not stand for junk
Also there is no harm is showing that we still ask for more compatibility, but you should point out that pentax already has more compatibility than both canon who have none, or nikon who only offer it on their most expensive cameras.