Point 6 in the video is about ranking on similar keywords like 'used cars seattle' and 'user autos seattle' with different pages for each of these keywords, although they are synonyms and this could be seen as spammy/manipulative in the eyes of Google.
Does this also apply when the content is completely unique for both pages?
If you have for example hundreds or thousands of articles on a blog, then it's logical that some of those articles are similar to each other right? And hit almost the same keywords right?
I think it would be weird if Google is going to give you a penalty for that.
Any ideas or suggestions about this?