As you said, the only requirement is a desire to stop drinking...however if you decide you are not an alchoholic, you are still a friend of many alchoholics and alanon practices the same spiritual principles.
"High bottom" drunks have a connection with other "high bottom" drunks coming into AA....our experiences benifit others, but perhaps not everyone...
I didn't see my alchoholism clearly the first 9 months after I found AA...it took time for me to see how my drinking really was....
Anyways...just some food for thought...glad you posted