Yeah, the whole area within miles of downtown LA had 3 Teslas, and the area around Redmond WA (where the Microsoft HQ is) had exactly one (and it wasn't even a Microsoft employee, apparently it was someone from Pure Storage). Which is obviously laughable, as my floor of the apartment parking garage alone (Seattle, 3 years ago) had 7 (out of maybe 18 total parking spots), and my floor at the work garage (in Redmond) had way more.
All in all, at this point, I am just curious how they obtained/gathered those specific datapoints. It isn't even a case of "some data is missing", it is more like "99%+ of data in the most Tesla-dominant areas in the US is missing".
One Tesla in the Omaha area where I live. Clicking it gives a Virginia address.
I am aware of a handful of Tesla's within a few blocks of where I live. Not listed.