It really sounds more like clinical volunteering.
From the document (bolding is mine):
"Possible examples include (but are not limited to): Registering people to vote, climate activism, advocating for civil rights, decreasing health inequities, addressing food deserts, building awareness for a particular cause or health condition, advocating for vulnerable populations (children, homeless, etc.), and assisting with policy change or development"
The purpose of that categorization is to note that an activity is centered around doing something to effect change beyond helping individuals/underserved people.