Really? You're linking to medium.com? I don't suppose that quote can be found on a reputable science site, can it?
If that is a quote of what he said, what does it matter whether or not it can be found on a ''reputable'' science site? The quote came from this interview... http://edge.org/conversation/the-energy-of-empty-space-that-isn-39t-zero jan.
For context: If your cop-out excuse is "goddidit" then that suggests you want people to stop working on understanding the Universe. Only advocates of ignorance want that to happen.
And the rest of the L. Krauss quote says this: "The new results are either telling us that all of science is wrong and we're the center of the universe, or maybe the data is (s)imply incorrect, or maybe it's telling us there's something weird about the microwave background results and that maybe, maybe there's something wrong with our theories on the larger scales."