In the description it says: "Get edits from IP: returns all edits and logged actions made by a user (registered or anonymous) from an IP address or range."
Apparently this is not true for all logged actions. Page reviews, which do leave a log entry, do not generate data for the CU extension. Please clarify which actions actually generate relevant data. One other action which does not leave a (public) log but is available for CU is sending a wikimail.