This is rather an attack on a strawman. No one thinks that ideas don't matter at all. Obviously you have to have a good one at some point. When people say that execution matters more than the idea in a startup, what they're really saying is something fairly complicated: that you need both a good idea and good execution, but that (1) since good execution is rarer, you should worry more about that, and (2) good executi…
He doesn't even do a consistent job of building the strawman. For example, his example of the iPad doesn't support his premise: People HAD been doing tablet computers (the "idea") for years (including Apple with the Newton), and it took the slick design of the iPad (plus the associated technological advances) to get it right. If that isn't execution, then I don't know what is.
Of course, none of this decreases the importance of execution (see any of a handful of Android tablets for an example). But the market player that had these ideas first got a huge head start on executing them.