Hi Smacktoward, I'm the author of the post and I agree with everything you said here.

How to reach out to new users while keeping your existing users happy is one of the oldest and biggest problems in software development. There's no perfect solution, but I like the suggestion of creating a new product name for the new thing. That can sometimes get you into trouble too, as you end up competing with yourself, Microsoft-style, or get users who are confused about which version they should use. But it might be the least bad option.