I'm an engineer who has been designing computers since the 1970s when they were the size of refrigerators. I think in terms of tradeoffs, i.e what's optimal with today's technology, tomorrow's and where we would like to be in the future. All tech goes through stages, barely functional, almost good enough, good enough and eventually more than good enough. The Bolt is almost good enough, a Tesla Model S 100D is on the edge of almost good enough and good enough depending where you live. To clarify,
100 mile of less BEVs are at the barely functional stage, they are the Blackberries or Palm Treos of EVs. They can do some jobs well like going to the supermarket and many peoples commutes, but they can't remotely be confused with general purpose cars.
200 pls mile BEVs, like the Bolt, are almost good enough. They can go anywhere in a local region but traveling outside of their region is either difficult or impossible. The DC Fast charge network is very sparse and in many places non existent so a Bolt is limited to places that have charging capability, and even if it exists it's much slower then you would like.
300 pls mile BEVs with an extensive fast charging network qualifies as good enough. In California there are a lot of Superchargers so a Tesla in CA qualifies as good enough. In other places the Supercharger network is no better than the DC Fast network, in Maine for example the only Supercharger is in the wrong place, Augusta, there are none in the Portland area which is where you would want it if you were traveling along the coast, curiously there are several DC Fast chargers in the Portland area. So in New England a $134K Tesla 100D is still in the almost good enough category.
400 mile BEVs with fast charging at every Interstate rest area would qualify as truely good enough, we are probably 5 years away from this.
Today the reality is if you want a car that can operate on electricity much or even most of the time, but can still go anywhere in the world, your only choice is a Volt because it combines a useful, but not optimal, EV range of 53 miles with a good ICE. The Prius Prime can go anywhere but it's EV range is so short that it can't be considered a true EV. Whereas the Volt is an EV that can operate as a hybrid when needed, the Prius is a hybrid which can operate as an EV occasionally.
I think GM has been very realistic about their tradeoffs for 2017, i.e. batteries are still expensive and there is virtually no DC Fast charger network. In this world they offer the Volt, which can go anywhere because of it's ICE, for use as a primary car, and the Bolt which is best for two car households.