I'm not sure I follow - how is that different than having every polititian/company ability to just create a website with a review and enter search results in that way?
Google is essentially allowing people and orgs to bypass the ranking algorithm.
What Google is proposing now is for individuals and organizations to directly supply content for it to be shown on top of search results. Now who will check the information provided to Google? What is to stop a government from spreading false news on Google?