... other types of database that would not necessarily be suited to operation under the Full Recovery Model include ... databases that experience discrete infrequent modifications.
I cannot agree with you here.
If you are on Simple, and your log was truncated this morning, and today you have had "discrete infrequent modifications", aren't you going to want to recover them?
Frequency of modification has nothing to do with the choice of recovery model. You should be more concerned with data loss, of any size.
In other words, a database with infrequent modifications could be an excellent candidate for the Full Recovery Model.