Sorry, I’m with the airlines on this one.
When flying with a P class or J class ticket , there is never an issue , nor should there be!
However how many time have you entered said lounges and unable to get a seat or found them crowded with pax who are simply there because of their card status and not their ticket status!
I agree that it should be clearly stated in the rules and perhaps airlines will change the rules so that lounges can be used by premier pax rather than freeloaders!! Ouch , too confronting??