I can see there are some issues with Yoast and Divi Builder which you tout Yoast has tight integration with. While the issue may not be due to this integration, I cannot find any other recent posts describing this issue and I also see other things that Yoast's content analysis seems to be missing out on.
The analysis is saying that there are no images in the page {first signal something is off} It also says that there are no outbound links in the page. Which may or may not be true. I do have outbound links in my footer which since it is appended automatically by WP, I think Yoast should check that content if it's going to give a red warning flag.
Check out the screen shots, you can see Yoast's odd analysis and as well, how many images actually are in my homepage. I also included the pages-sitemap showing 0 images for the homepage.
I may be a free user {at this point} but this is a pretty big stinky bug that needs to be addressed pronto!