Is it really that reasonable of a solution? They provide versions with either a 5-20 or 6-20 outlet for ~$400. But where does someone get an EVSE that supports those outlets, and how much does that cost? (Most EVs don't even come with a 5-15 EVSE anymore.) We know the Tesla UMC supports those, but for a non-Tesla they would have to buy another adapter to use it.
Alternatively, they could install Tesla Wall Connectors, either the Tesla version that costs $425 (wasn't this $350 just a little bit ago?) or the J1772 version that costs $550, and then people wouldn't have to provide their own EVSE that could easily be stolen. And Tesla does support charging people for the electricity used by them. (Though it seems like they want installs of at least 12 Wall Connectors to support that.)