When searching for content, the link summary for blogs can quote / summarize contents on the blog from people, not the contents of the blog itself. This can distort the summary of what the article is actually about.
Example, searching for: "shadows of doubt 1.0 devblog" to look at the blog post from the developer I was kind of surprised to see this summary
I was confused why that was the summary, considering this was a celebration blog post and talking about all of the new things they added for launch day.
Instead, the summary seems to be based on one random person's comment on the blog. So it's technically on the page, but contextually irrelevant for a summary about what is actually being presented when you click the link.
Summaries of blog content should generally not have comments included as a primary portion of the summary, and should stick to the contents of the blog post / article.