FWIW, your commuter policy is much more liberal than AA's. A full flight is no excuse for not making it to work. Just within the past year they have modified the policy to allow removal from your trip with no "missed trip" penalty ONLY if you have made 3 attempts to get to work and all three cancelled or were delayed due to mechanical, weather, ATC hold.
And, by no penalty, I mean it's not a black mark on your attendance record. You are removed from the trip without pay and you have to make yourself available for what we call make up flying and actually fly in order to get back the lost pay.
And, all 3 of your "attempts" must have been far enough in advance that any of them would have gotten you to base before your scheduled sign-in time. There might be a 0700, 0800, 0900, and 1000 flight to base. If your sign-in is at 11:15 and the flight is 1:20, the 1000 can not count as an attempt. If all of them go out on time (or near enough that you would have still made sign-in), but they went out full and you couldn't get a jumpseat, tough. It's still a missed trip. Only a cancellation or a mechanical/weather/ATC delay gets you off the hook, and it has to happen with all 3 flights--unlikely.
It's one issue that I understand the company has never even allowed to be discussed in contract negotiations. Their philosophy is YOU choose to live away from base. You, therefore, bear the responsibility for getting yourself to work on time. When you come down to it, that's the way most companies operate. I chose to live in the Houston area in a subdivision that was 36 miles from my office on the opposite side of the downtown area (I lived in NE Harris County. The office was in Southwest Houston.) My company did not think that the length of my commute was a reason for me to be late to work.