I guess so, but in the case of Burbank (not sure about Downey) it was an early Supercharger station that was a bit too small and overrun by demand and couldn't be expanded. It looks like in Irvine two stations are simultaneously being built next to each other.
Although to be fair there are a ton of Teslas in Irvine, I could definitely see multiple stations in the area. I just thought the second station would either be along the I-5 or even in East Irvine by Spectrum.
Also found a few more details on the Michelson Dr. location. Not terribly much info but the permit shows the size as 29 spaces. Probably doesn't mean 29 stalls though...