Remember that the AHA Governing Committee would love to hear your feedback, and are very open to constructive criticism.
I hate to admit it, but I didn't even go to ONE session this year. Normally, I make it to one or two, but there were few that appealed to me from the description. I talked to a friend about the oxidation one, which did sound interesting, but as for the rest I was pretty "meh" about them.
I'll be visiting one of the GC members in two weeks (staying at her house), and I'll probably bring it up. They listen to the pitches for next year's topics, and choose the ones that are most interesting for the membership. Also, if there is something you'd like to have as a topic, they are welcoming of suggestions.
It's been a long time (years and years) since I"ve gone to one of the seminars and felt that I learned something, to be honest. NOT that I know it all- far from it. There was one a while back that really got into the "meat" of the debranching of amylopectins in the mash and I thought it was great. Otherwise, it's a best a review of what is common knowledge for the most part.
I'd hazard a guess that most of the attenders are beyond the beginner's stage and more into the intermediate/expert brewers level of experience and I'd expect the seminars to reflect that. I've been mostly disappointed.