As noted in Process for reviewing classic confinement snaps, the request for classic is less about the security team being happy and more about capturing why the snap needs classic (so snapd developers can potentially improve snapd) and establishing trust in the publisher of the snap (since classic snaps provide root on all devices where the snap is installed). This is something that @evan and the advocacy team will lead with other store reviewers commenting on as appropriate.
Thanks for your input! I think participating in requests like this is really helpful. 