I found this web site for the Illinois AA state conference, you can try using the 'contact us' button and asking them.
http://www.aailcon.org/
But why not ask the person who is making the claim to be more specific and explain exactly what their objection is?
And aside from that, the bylaws of any AA conference are only intended to provide guidance to that conference about it's own actions, I don't see how they could be intended to impose rules on other groups or individuals...
!2 Step recovery Fellowships are full of people who really don't know what the hell they are talking about. The conference puts out a flyer unless they wanted to get the information on the event out to those who are interested in it. That's why they put out a flyer. Since the site has a view/print button on their website, its safe to think that they want to get the info out there.