It's annoying, but it looks like the original story came from The Charlotte Observer and was distributed through Tribune Content Agency, a syndication agency.

It's annoying, but it looks like the original story came from The Charlotte Observer and was distributed through Tribune Content Agency, a syndication agency. That probably limits the embeds in the story. You also need to get permission to show the video (at least reputable sources will seek permission from the original creator). Phys.org might not be contractually or logistically able to get those permissions and add the video to the page.