I take your point about defeating BVR missiles, Orca, but that would only hold true for those shots taken close to Rmax (Ra, Rnm, etc). Those are not terribly high Pk shots anyway, which is a problem for the shooter, especially if he only has 2 AAMs in his mixed load. Many, if not all, "max range" shots would be beaten by a simple abort. Unless one is firing for effect (disrupt an attack, for example) it would be more usual to launch at much closer range, depending on stealth, superior missile, higher launch velocity and high manoeuvrability to survive the bad guy's exchange.
Visual range launches are much harder to beat, but you can still make a missile work for its living, especially if taken at the edge of the missile's manoeuvre envelope. Better to do some sort of defensive manoeuvre than just sit there and assume you're going to die anyway.