Taking a quick look, it appears the site has a custom play video that renders the video in a popup. You can create a custom behavior that clicks this particular button, since it appears to link to youtube, but actually does something different (opens a popup), the standard autoclick behavior skips it.. but you should be able to create your own behavior script that clicks the button (and perhaps others that load videos in popups).
For more info, here are our docs for behaviors: