Given that (a) the Flask-Security extension's changelog only goes back a couple of months and (b) the extension registry explicitly lists some (but not all) ext

Given that (a) the Flask-Security extension's changelog only goes back a couple of months and (b) the extension registry explicitly lists some (but not all) extensions as "approved", I'd guess that it just hasn't gotten listed yet. Since some are listed without the "approved" tag, it seems like it would be allowed to be listed.