It's certainly not a "fake home business". Nobody ever said it was a business, just that it's listed on Google Maps that way (by the way, Google reports 180 different requests for directions using "Pidgie").
Lots of households in Berkeley go by names; graduates of the student co-ops often form collective households with names, and that's how they're known in the community.
This house works that way, and is known by that name in the community. Seems like valid criteria for inclusion. But yes, not as a business.

It's a name for a household, which gets used for a number of public events. It's listed as a business in Google Maps, since that's the easiest way to classify it, but it's useful for people to be able to specify "Pidgie" and find it on a map.

The website does not have much public-facing information at the moment, it's true. That should change.