Azure AD (AAD) and ADFS password reset

There is an integration guide for deploying ADFS for Office 365 in Azure https://technet.microsoft.com/en-us/library/dn509538.aspx but it doesn't talk about the possibility of using Azure AD (AAD) - but only conventional DC virtual machines. 

However this guide suggests it can be done: https://samlman.wordpress.com/2015/03/05/using-azure-ad-as-an-identity-provider-with-adfs-for-sharepoint-2013/

If we went this route can we use the adfs 2012 R2 feature for password reset or do we need Azure AD premium to make this work?

http://blogs.msdn.com/b/samueld/archive/2015/05/13/adfs-2012-r2-now-supports-password-change-not-reset-across-all-devices.aspx

As a side note it seems strange that Microsoft won't give an SLA for AAD free when I assume it uses the same infrastructure as the other offerings....

Thanks

David