Page analysis not picking up gutenberg data

Hi, we have changed to using gutenberg blocks for blog posts but the page analysis section is not picking any of this info up?

So for instance we have an image block with an image in and a content block with content in and internal/external links

However at the bottom of the page the analysis section shows none of these are there with the messages –

Content Length 

This is far below the recommended minimum of words.

Internal links 

We couldn't find any internal links in your content. Add internal links in your content.

External links 

No outbound links were found. Link out to external resources.