There's some hilarious dialog between characters. Lots of stuff between Clockwerk and Pudge ("Hey, Pudge, I'll come to you!" or "I've got one of those too, Pudge!")... the amount of detail is fantastic.
There's multiple quotes for when Warlock gets a freaking Divine Rapier. What the heck.
There are quotes for when Faceless Void screws up an ult.
There are quotes for Slardar with a Cranium Basher ("This seems redundant").
Without the need to do all sorts of balancing and gameplay modifications, they certainly took the time to make sure the game has style. I guess I shouldn't have been concerned with this coming from Valve.
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No amount of planning will ever replace dumb luck.