Because it's a domestic flight that's not the same day or before 6am the next? And my status is with AA. If I had BA, IB, AY, QR, JL, MH status, you're correct access would have been incorrectly denied because they get access on AS and AA domestic flights, irrespective of international connection. But for domestic flights both AA and AS status holders are discriminated against if their international flight isn't the same day or before 6am the next day. That's just the way it is and I've resigned to that. The OP on that question was also an AA status holder, subject to the same rules / discrimination.

I challenge you to go to that same QF lounge in LAX, try to get in on the AA redeye that leaves just before midnight (with AA / AS status or no status and only a business class ticket), connecting to JL or AA in DFW to TYO and see if you get any further with them. There are plenty of data points in this thread, it's not happening. That seems to be one of the most stringent lounges in the system. The RJ lounge in AMM seems to be nearly as bad by denying entry to their own connecting business class passengers until 3 hours before departure (also very well documented in the forums).