This is not the case at all. If you've ever seen the "brewhouse" at 515, you would know what kind of constraints they have. What they want is to be able to share their beer with everyone, with space constraints and the fact that 515 is a hobby brewery for most of the people that work there, they are pumping out as much beer as they can brew.
As for the Exile hate on here, it's completely unwarranted. They are brewing some of the best Lager style beers in the Des Moines area or even the state. I would be on the look out for the lager style in the upcoming years. I also think that like many other Iowa breweries that try to start off brewing nothing but a particular style (I believe Exile set out to brew only primarily traditional German style beers), they realize, "Wait, that is not what the masses are drinking and not what the masses are looking for." So they've had to change things up. Their first run of their IPA was atrocious, but they have since re-brewed and improved it. They've also got a berlinerweisse that is incredible.
One problem I do have with Iowa craft beer is the "Drink Local" passion that people have. I completely understand wanting to support local businesses, but many of our Iowa breweries are cranking out crap and people are drinking it up for the reason that it is a locally made beer.
It's not that they want kids in their brewery, their point is that it lies on a bike trail. Why shouldn't I be able to stop in with my kids for a beverage after a ride? They have root beer, snacks and games. I don't think that they are trying to cater to children, but they want their environment to be family friendly which plenty of breweries across the United States are.