If you refer to the fact that scripting the procedure(s!) generates one script with two create statements then that is not really the point (that is just a matter of SSMS implementation)

The point is that it is two different objects that are created, altered and called individually (dropped as a group, though)

This is, as quoted, backed up by the official documentation, which, aside from the quoted part, refers to the concept as "group of procedures"

I rest my case 🙂