Hoping!
Sure glad they just build cars. Given their (apparent) inability to generate accurate maps and keep them updated, I'd hate to have them delivering flowers, running an army, or building roads.
You'd think at some point responding to all the questions, pleadings, and beratings would prove to be a waste of manpower when a proper map, duly updated, and known to be trustworthy, could resolve all that ahead of time.
Except that ignores the 4 dimensional reality of trying to do this roll out as fast as possible.
You start by picking sites that make theoretical sense from a coverage perspective. At that point, you're just pushing pins into a map.
You send teams out into the world to talk to landlords, study traffic patterns, and confirm your guesses about where would be good sites. Sometimes you can't find anyone willing to lease to you. Sometimes the place that you thought was ideal turns out to be too far from existing utilities. You adjust accordingly.
Meantime, you line up a national legal effort to pull the permits and oversee the work. You locate law firms in each market that know the Town Hall and how to grease the skids. You adjust your plans based on what your advisers tell you. You start pulling permits and/or filing zoning variance applications. The latter can takes weeks if not months to file and months to get approval.
You also locate and train teams of electrical contractors. You've got to get multiple people in the field simultaneously. You want the teams to be as small as possible, so you never, ever want them idle.
So, when you hit a snag in market X, you redeploy the teams to market Y. Plans change. Maps change.
On top of all of this, you're still calibrating your marketing strategy--because this whole Supercharger thing is as much a marketing tool as anything else. Do you emphasize coast-to-coast travel? LA to Seattle? Miami to Boston? Miami to Seattle? What do you do when existing chargers get crowded? Remember, this is a marketing tool, so the last thing you want is long lines of people waiting to charge.
And in the midst of all of this, where you are literally trying to create a brand-new, national refueling infrastructure, you've got everyone and their brother complaining that supercharger X is too close to point Z, or that supercharger Y needs to be built tomorrow. And while you love your customers, the people that have the money to buy $100,000 electric cars aren't know for being shy or retiring...
tl;dr--
Cut them some slack. They're only trying to do something that's never been done before.