I bet they put it in horseheads vs Corning, simply because there's more support retail/restaurants there.
That would really suck for N-S travelers on 99 and 390. Somewhere between Corning and Bath would get both N-S and E-W routes with one supercharger. When they are as sparse as in western NY/PA, it's even more important to put them at intersections, unlike what they did at Bloomsburg, PA.
I'm planning a trip for next month from my home in York, PA to the Canadian side of Niagara Falls. I would like to drive from the Bloomsburg, PA SC to the Buffalo, NY SC. The shortest route takes me north following 15N, 86W, 390N, 63N, 90W, a distance of 238 miles.
I'm concerned it might be too much for my MX 75D. Unfortunately, PlugShare doesn't reveal any reliable solutions. There are two 14-50s in Williamsport and a J1772 at a Hampton Inn in Painted Post.