Perhaps you need to read the article.
Under the Guardian's "Promise 1" It says "Brexit will be easy, and have no downsides".
The only quote given in that section which predates the referendum is from Michael Gove, and says: "The day after we vote to leave, we hold all the cards and we can choose the path we want"

You should know me by now - I read everything in sight.   (I spent last night reading Google's terms and conditions on pne of their APIs - that's what happens when i run out of other thins to read.)

So yes, I has read the article before I posted. And my understanding of 'holding all the cards' is that a win will be easy. Isn't it yours?