"The API may be used only for services that are generally accessible
to consumers without charge. Accordingly, You may not use the API for
any service that requires a subscription or other restricted access,
or for which a fee is charged."

So what exactly do "generally" and "other restricted access" mean?

I've read other threads where it seems this paragraph is not clear.
Not only do they fail to answer the question for their use (part free,
part pay) but that is not my issue at all.

I have a genealogy site.  I'd like to use maps to places mentioned in
the genealogy.

Now MOST of the data is open to all, but data on living persons is
limited to close relatives of those people, identified by login with
password.  There is no fee required of these persons (although
donations are accepted), but even with login, they can't see ALL of
the site.

For example, my sister can see data relating to e or my with, but she
cannot see data relating to my wife's cousin.

Is that "restricted access" in the sense of the TOS?