This is probably one of the most well researched and reasoned ranking. I too, have been bemused by many a list. The Denver-Boulder and Longmont-Fort Collins divides need to be examined (as a resident of this/these/etc.) Longmont is to Boulder (in relationship) is as equal as Boulder is to Denver (and Denver is to Golden and Golden is to Boulder), but Fort Collins is away enough to be on its own (includes FtCollins, Loveland, Berthuod and maybe Greeley, not to mention the Budweiser plant...(not Craft, but adds to the total bbl produced)).
I think that if things are changing as quickly everywhere like they are here in Colorado, there is no point in arguing about rankings. Each will have its regional differences to wow us intrepid beer tourists on a yearly basis.
I can't wait to visit and revisit these markets.