There are so many great snacks currently allowed on the plan that I'd hate to see them start classifying 2 snack credit items. I can see it now: anything over $2 requires 2 credits. No more Dole Whip for 1 credit. No more Onion rings from Flame Tree BBQ for 1 credit. No more Ice Cream for 1 credit.
FYI the brochure doesn't list all the good snacks but the sticky on this board does. There are a lot of pricy ones available.