I think it comes down to who is actually paying and how this paragraph can be interpretted.
Ellis and the Macon Islamic Center will sponsor a discussion of the holiday at 5:30 p.m. Tuesday in the council chambers. The forum will last until 6:30 or 7 p.m. and culminate in a communitywide feast in the City Hall foyer, said Clarence Thomas, a communications specialist in the mayor's office. Muslim, Jewish and Christian leaders have been asked to attend, he added.
If by "sponsor" they mean they are paying to hire the chambers and for all the food, decorations etc, then I don't see a problem.