Same for me when I flew BOS-DFW-NRT on AA in Sept. I did VerFly app with Green Active, and Blue screen on MySOS. I was able to do online check-in at AA.com and at BOS checked baggage and the agent did not ask me to see any documents. At DFW, spending short time at the Flagship lounge I headed to the gate for NRT flight. At the gate I was told I have to get a stamp on my boarding pass. I was not aware of this until I got to the gate. The lounge attendant and agent at BOS did not mention about this. Only one agent was doing this, checking documents and stamping boarding passes, obviously long line. There were two guys heading to Bangkok and were pissed off about the long line to get a stamp on a boarding pass at the gate. One guy said out loud to the agent at the podium; "We are elite and is this the only line?!" They were told to wait in the line, and one guy was saying "AA is going to hear about this!"

Now that the restrictions to enter Japan has lifted, I wonder if this is still going on with DFW-NRT flight on AA. There are still connecting passengers heading to the countries with the entry restrictions, so it is possible that this is still going on.