The 1 hour waiting for someone to direct the plane to the jetway happens, I love it when you land at your destination, the captain comes on and says " Well folks, we landed 45 minutes before the expected landing time, but our gate is currently occupied by another plane, so we have move until the gate is available". Yeah, another 45 minute wait for the gate, is not as if they didn't know the landing time of the plane. Did you at the very least managed to get off the plane at the expected arrival time or close to it?

However, the 3 hour wait for luggage retrieval from the plane, that's another thing, as others mentioned, don't check luggage, but, if you are one of the last to board, space is limited, and the Embraer has limited bin storage, and you will be forced to check. I try to prepare myself for the type of plane I'm traveling in order to minimize my wait, it helps having status so I'm usually one of the first to board, or if possible travel in BUS/FIRST as well. I will submit a short message alluding to the 3 hour wait for luggage, Most likely they certainly have records of this incident as you probably where not the only person affected by this, nor the only flight.

The living wage or understaffing, seems to be a redundant point, as you have failed to mention what you consider a living wage or proper staffing, also, it wouldn't necessarily mean that this couldn't have occurred anyway as emergencies occur, maybe 2 other guys where involved on a minor accident while at work and they where being looked at, too many variables for which you have no access to.

When sending your message, make sure to provide the AAdvantage #, and you might be gifted 5000 miles for your troubles.