I'll go back over tonight and walk around to take an even closer look (from outside the fence, not going to trespass on the construction site) to see if there are any more clues as to why this looks currently like an oddball 10 stall. My best guess at the moment is that there was some local ordinance about handicapped accessibility that caused them to widen that spot, losing the ability to have the full install, perhaps after the plans were done and equipment shipped. Still odd they didn't just go with an 11 stall though maybe there is an issue with odd numbers or something. Who knows.
Of course that first pair of stalls sharing the whole first charging stack could be the rumored pilot of the 500 kW stalls. And by rumored, I mean completely fabricated nonsense that I just made up to stir the pot.