The complaint is not that "The Fisher Group" should be on the map instead of "Summit Sotheby's". The complaint is that reviews which used to be attached to one agent (Stan/Ben Fisher) are now attached to a different agent (Cindy Wallace). Apparently this happened because two different Google Business accounts (one that Stan/Ben Fisher had had for years, and one that Cindy Wallace just created) got merged into one. That seems to me to be a problem for two reasons:
(1) How can Google not comprehend the idea of multiple business accounts at the same address?
(2) How can Google merge a newly created Google Business account with one that has existed for years without checking with the owner of the one that has existed for years? Saying "well, the person who set up the new account made a mistake" is not a good answer.
Of course, AFAIK these people aren't paying Google, so to Google they're not customers, they're just users whose data Google wants to sell. But maybe if enough people get the idea that Google is simply incapable of providing accurate data on businesses and reviews, and stop depending on Google for that information, and word of that gets around, Google might start thinking that maybe they need to do something. (Not that I'll be holding my breath.)