Fiddled with it some more. If I set minimum charging power to 0 and select All Brands, it shows me two chargers. A dealership, which is definitely not a public charger, and a Blink station. Interestingly, it's also marking highways with California highway signs. In Washington DC. I did get chargers to start showing up though - I zoomed all the way out, zoomed in to California, moved around a bit, and they started popping up all over. Moved back to my area and the EAs are now showing up as well. Only the EAs. Even though I have All Brands marked. Strange beast.