Often you assume your customer is the same as you - sees the problem the same way, wants to solve it your way, and wants to pay for it. But you're explicitly not like your customers; for one thing, you have enough initiative and insight to quit your job to start a company. It's easy to let your idiosyncratic preconceptions prevent you from observing what the larger market will accept.
I think that's a corporate perspective to review a startup pitch. In a startup you're iterating and evolving your idea but you have some start point and perhaps it's your 'idiosyncratic preconceptions'.