It has been 919 days 23 hours 57 minutes 26 seconds, since Google last publicly commented on their losing of business reviews.
Since that time, reports of Google losing business reviews continue to come in. From both personal experience and reports that flow into the forums, it is clear the Google has yet to solve the lost review problems. It is clearly not one problem but several.
For SMB’s, the only thing worse than Google not fighting review spam, is losing good reviews. Not only do SMBs deserve to have these reviews found, they deserve communication while Google is hunting for them.