Interesting article, thanks for posting!
It seems to confirm my impression about which I wrote here long ago: utilities aren't pushing this development enough with proposals, offers, and initiatives, which indicates that either they don't see the potential, or that current regulations keep them from being able to take advantage, of something which should be to their advantage. Utilities need to be in a position where it is obvious to them that a strong EV market will mean more customers, and more business to them. As the article seems to imply, that business advantage could be shared by the utilities for a larger profit/business, and by rate payers, as a part of it can be used to reduce rates in general. But also, a part needs to go to the utilities such that it will be in their interest to support EVs as much as they can.