The way the Lazy loading facade is setup, they dynamically inject the iframe when a user clicks on the play button.
The end result is that articles they have written are not being indexed on the page because of this setup.
Therefore, they were curious about what might be the best way to actually get the content on the page indexed.
John replied that it is highly likely that Google does not recognize that there’s a video, based on the way the SEO pro has their site set up.
Ideally, the best approach would be to make sure that the video is marked up with structured data, so that Google can tell that there’s actually a video present.
Additionally, using a video sitemap is recommended so that Google can easily see and understand the video pages that are on your site.
He believes the best approach is a combination of those two approaches: using the sitemap along with the structured data marking up the video.
This happens at approximately the 5:09 mark in the video.