Even that is too low and too much of an inconvenience for genuine users - they shouldn’t have to suffer. As I mentioned though, edit spam is just one aspect. Having these kind of logs makes it super easy for Admins to get an overview of which members are ‘helping out’ i.e potential mod material.
I hadn’t seen the data explorer plugin, however I still think this is one of those features that once you have, you would find difficult to live without (if you have a busy or relatively busy forum) particularly if it is expanded to have a similar (configurable) page for moderators.