Didn't it used to be popcorn, ice cream etc. AND a drink? Am I to understand correctly that now a medium soda, milk etc... IS the snack? You get a porcorn OR a drink not both?
It's always been that way - even way back in 2005 (the first year the
Disney Dining Plan was in existence).
In fact, 'way back in those olden days'

, the ONLY choices were:
Ice cream novelty (or)
20 ounce bottle of soda (or)
20 ounce bottle of water (or)
Medium* fountain beverage (or)
Single-serve bag of chips (or)
Single piece of fruit (or)
Single-scoop box of popcorn.
There was never an "and" component to the snack. A snack is one item for one person.
Then, during the Food & Wine Festival, some F&W items could be purchased with a snack credit - again, one item per credit, not all items included.
In 2006 and through 2007, the snack definition was expanded to include most snack-type (i.e. not meal items such as pizza slice) under $4.
Now, in 2008, Disney has reduced the definition of snack to a, really, sensible level - individual serving.
*Some locations allowed large fountain drink