Originally Posted by
irishguy28
. Qatar could not be said to be a member of the alliance if they were (for whatever reason) the only airline that could not allow its members to earn status miles when flying across the alliance.
"eligible fare classes" is the key. Some low cost fares do not earn miles: are non eligible
This is not unusual in OW. Particularly with some CX fares, where the same fare class bucket on other OW airline fares earning in many other OW FFP's (e.g L). Same with QF - AA, but with the AA FFP a change was made recently so more QF fares are AA earning.