You should feel free to write a literature overview that cites or draws heavily on paper-announcement blog posts. I definitely won’t mind. In general, the blog posts tend to use language that is less mathematical and more targeted at a non-specialist audience. So if you aim to write a literature overview that is as readable as possible for a general audience, then drawing on phrases from the author’s blog posts describing the papers (when such posts are available) may be your best bet.
Nope, not intentional.
You should feel free to write a literature overview that cites or draws heavily on paper-announcement blog posts. I definitely won’t mind. In general, the blog posts tend to use language that is less mathematical and more targeted at a non-specialist audience. So if you aim to write a literature overview that is as readable as possible for a general audience, then drawing on phrases from the author’s blog posts describing the papers (when such posts are available) may be your best bet.