I agree, but per the 2019 Questions, you, Melanie, had tried it and it didn't count the sources added to profiles without the category or specific suggestions.
I also think it would be nice to be able to add more than one source and have it count more, but that was also stated as not possible. Adding one source is not necessarily really sourcing a profile properly when the template is removed, and the remainder of the sources available will probably not be added.