Time for the locals to take another swing by to check things out. Here's some evidence showing forward progress on this as a supercharger location: Washington One Call ticket #
19411450
It's a utilities location request by Blackstone Construction--this is the same group and contacts that recently did the work on the Spokane and Moses Lake superchargers (both sites only have the infrastructure done so far)--in preparation for digging to new install electrical service for Tesla. It includes a GPS tag of the exact location, which is right where you'd put a supercharger if you were going to try and cram one into the "available" parking there:
46.952947, -122.935103
Also, while the building permit application from 2018 for the fence hasn't been approved yet, it did have an extension to the plan review applied to it in April 2019. Though that was probably an automatic process triggered by 6 months from the original application date (in October 2018) having passed.