I'm growing more convinced this is the case. I was always one of the first to receive the updated software pushes since I bought my car last March, and I haven't gotten a push for quite a while now (I'm also on 2022.28.2). When Elon announced he was expanded the FSDb pool by 60,000 users, I was so excited to be getting it! But one of the other forum members said that those of us who had continued to get the "normal" updates were not truly in line to receive FSDb, and that's why we continued to receive "normal" pushes. Once we had been tagged to receive FSDb, the updates would stop until we got the latest FSDb update. This seems to be playing out for me (hopefully).