My point is that without the bonus, Alaska members who are redeeming CX is going far more than CX paying passengers to credit CX.
I only notice last week that AY I class do not give 100% bonus.
For BA premium bonus, BA gives the same COS for their member.
Also AY, AA gives COS for D class just like AS
I have a sense that when AA started the new dollar based EQD. They normalize across all partner, but as new update were added, (AY and LA and QF), they give better COS to partner reflecting how much the airlines are paying AA.