If you’re at home, you can access your hub’s admin interface by browsing to its local IP address. You can also open a local, or cloud dashboard link.
The admin interface (where you edit automations, pair new devices, etc.) and the dashboards are not the same thing, and that’s an important distinction you may not be aware of.
If you’re not at home, you can browse to a cloud dashboard link on your phone’s browser. You cannot access the admin interface or a local dashboard link. Unless you have rolled your own remote access solution like a VPN, so that your phone can browse to the hub’s local LAN IP address.
In other words, like @bcopeland said, they are offering a service for people that don’t currently remotely access all of their hub’s functions. They are not taking anything away if you want to continue using cloud dashboards while away from home.