I don't mean simple is lazy in any way, I mean what I said: "Flat design looks lazy". Not having hover states for your buttons looks lazy. Not making it clear to users what pieces of the page they're meant to interact with looks lazy.
For the purposes of making things clear, "not having hover states for your buttons" and "not making it clear to users what pieces of the page they're meant to interact with" have very little to do with flat design as a style, the exact same things can happen with skeuomorphic design as well(suggesting of skeuomorphic is the contrary style). Your 2 examples sound more like a lack of user experience consideration rather than a poor design style decision.
