As the topic goes - Go to Google and type in "plumbers in San Francisco". The results are nothing more than staggering.
Notice the Green Check with "Google Guaranteed". This means two things. #1- No one without this guarantee will be shown. #2 - No matter how good your on-site SEO is... it won't get you verified or listed. There is also less space for Ads as well.
What in your opinion is going to happen if this rolls globally? Many spammy SEO agencies will go bankrupt for sure, but what is more important, high star reviews will become more than relevant. Is this a glimpse as what will be the norm in local space?