Being able to use Azure AD means that you can use some of the Azure AD security features like Advanced Password Protection. As well as querying your normal password requirements like lengths and complexity, Azure AD has a feature in which you can put specific words. It can be words to do with your company, words to do with your company location, or words that a lot of your employees would otherwise use. You can disallow them. It's very good at making more obvious passwords, ones they're not allowed to use anymore. That's a good feature.
