Even though Francis Pedraza's intuition says that people should want something, it's not certain that they actually do (and will pay for it). For example, my intuition tells me it'll be really difficult to build a business around his Everest app but if there's something to learn from Lean it's that intuition rarely is sufficient. (And I'm sure the Everest team proves my intuition wrong with good growth and feedback).
Though, in general, I love visionary startups and founders but I don't think that a grand vision should be an excuse for not validating the value and growth hypothesis.
And of course he has a good point in that startups often need many iterations to find the exact product that their customers want and since these iterations can be painful it's very helpful, if not necessary, for founders to be vision driven.