Comcast/Xfinity's email address policy

Is my understanding of the following points correct?

1. It is no longer possible to create a new Comcast.net email address, not even for the Primary user ID
2. It is no longer possible to modify an existing Comcast.net email address 
3. If you don't have a Comcast.net email address, you can't open https://connect.xfinity.com 
4. If you don't have a Comcast.net email address, attempting to open https://connect.xfinity.com doesn't tell you that you can't do that. Instead, it redirects to https://www.xfinity.com/support/articles/account-email-information which fails to explain what is happening 
5. The Xfinity Verified Email logo only works in https://connect.xfinity.com, only for Comcast.net email addresses. It does not work in 3rd party email programs or apps 
6. Preventing creation of new Comcast.net email addresses has also killed https://connect.xfinity.com and the Xfinity Verified Email logo for those users now forced to use 3rd party email addresses 

IMHO to save a few pennies, the company has shot itself in the foot, disabled a component of email security, and done a great disservice to its customers. 

If I'm wrong about any of these or have overlooked something, please let me know! 

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