Google's Danny Sullivan told us that the Google product reviews update primarily evaluates product review content on a page-level basis, but not always. Danny added
SEO at https://t.co/1x54ymZdIo - 20+ years in SEO. I only tweet about SEO. Author of Premium SEO Checklist: https://t.co/zr0eaY67w1
Also at @shaun_anderson
SEO Consultant at G-Squared Interactive focused on Google algorithm update recovery, technical SEO audits, and SEO training. Columnist at Search Engine Land.