If there are differences, it would be helpful if you could both truly define them. For example, when talking about menus in the customizer, she could have said, "in WordPress, the menu system works like this...," and then go on to summarize. Then comparatively, "in Squarespace, the menu system works like this..." Because it's a podcast, there is no visualization. It's difficult to follow and doesn't give the listener a good indication of what you're talking about. Also, the visualization of those key difference could have been provided in the blog post itself.

Additionally, I she is a fan of Yoast, but that is not the only or best plugin for SEO in WordPress. There is also All in One SEO Pack, which is the most dowloaded plugin for WordPress and the choice of top SEO professionals. While Yoast is packed with all sorts of link-offs to other 3rd party services, All in One SEO is elegant simplicity and attempts not to confuse the user with extraneous tools that can simply be bookmarked in a browser. Additionally, All in One SEO follows the rules set out by Google Webmaster Tools around sitemap generation and the other one simply does not.

(Disclosure: I consult to All in One SEO in digital marketing.)