Attributes are a trickier question. They held most value for me as a [metagame] point of comparison, being the fantasy tabletop and card game geek that I am ("hmm, a giant spider's Strength is 70 and a Mountain Giant's is 85..."). In actual gameplay (and certainly in roleplay!) they were essentially non-entities, although they could be useful to reference with scripts in user-created scenarios (eg, can the PC push the boulder?).
Looking at it objectively, the streamlining makes perfect sense. Here it's very distinct from "dumbing down" - Skyrim's character progression can range from almost mindlessly simple, to ludicrously complex, if I'm understanding the scope of classless skills and perks correctly.