VCs are in it to make money, not just to help people realize their ambitions. For them it's better to push companies towards the explosive growth path, because it means a better payday for them. And in a place like silicon valley where promising startups staffed by the best engineers in the world rain from the sky like manna this sort of strategy is eminently feasible.
However, it's not necessarily the best strategy for the average startup, which may find itself destroyed as grist for the VC money mill.
Fortunately, there's a place for both "next big thing" companies as well as "next little thing" companies. And there's nothing wrong with doing bread-and-butter business helping entrepreneurs realize their dreams even if it doesn't result in gigadollars and news coverage on CNN.