Aw, that's too bad.
Some people suggest you focus on what you perceive to be the biggest problem at the moment. But there's no rule that says you can't work both programs at the same time. I think his point probably was that by staying sober, yourself, it will enhance your ability to focus on the Al-Anon program.
Still, it was inappropriate for him to be talking about that DURING the Al-Anon meeting.
I'd suggest you find a sponsor for one or both programs, and run it by her. Or simply ask opinions of other people with good recovery in either program.
Don't let it put you off the program, though. You have every right to be there and to your recovery.