We had a mixed bag with our Air2Sea experience for our upcoming AOS sailing. We used a TA, we paid immediately for our tickets, and within 24 hours we were able to select our seats on the AA app. I paid to upgrade to the more spacious seats. We then added a second cruise, so changed our return flight to a week later ($150 cheaper for that flight, so we now have a refund coming for that — new flights are already fully paid). For weeks the flights showed as pending on the AA app. Finally had my TA contact them, and she was able to get them to actually ticket the flights. (She said they were scheduled to be ticketed a few weeks later than she was able to get them to do). So, if I hadn’t called, I’d still be waiting. We didn’t change the outgoing flight, but they still bumped us off the seats I had paid for. Took hours on hold to try to get that resolved, and I still had to pay again to get my upgraded seats. The refund for the original upgrade is supposedly approved, just waiting to see it hit my cc.
So if you used a TA, have them call. Those seats are going to disappear. And if they oversold the flight, which sounds like maybe they did, you’ll want to be at the airport checking in extra early, to be sure you get your seats. Also, yes, airlines now charge more for seats in more desirable locations, and/or more width and legroom. And the regular economy seats are getting smaller and smaller.