Gary, that seems to be at odds with the linked DOR document:
Homebew may be transported and delivered by the producer to any licensed premises where consumption of malt liquors by persons over the age of twenty-one is authorized (including malt liquor sales room, or tap rooms) for use at organized affairs, exhibitions, or competitions, such as home brew contests, tastings, or judgings. Consumption shall be limited solely to the participants in and judges of such events. Malt liquors used for these purposes shall be served in portions not exceeding six ounces and shall not be sold, offered for sale, or made available for consumption by the general public. (Section 12-47-106, C.R.S.).
Essentially, because tickets are required, beer festivals are private events. Have you heard from someone at the state that this isn't the case?
I have had a conversation about this with the director of the Colorado Liquor Enforcement Division. Beer Festivals are not considered private events since any member of the public who is 21 and older can purchase a ticket.
Competitions are legal if those tasting the homebrew are invited as judges and stewards.
Homebrew can be served at homebrew club meetings, but only to members of the club (i.e. a patron at a brewery where a club meeting is taking place cannot be served homebrew if they are not already a member of the club).
We could have homebrew served at an event like Homebrew Con, where we charge a registration fee for an event that includes an educational component and then have attendees serve their homebrew to fellow attendees, so long as registration is limited to members of the AHA.