>>it's only magnified as a problem because we KNOW she was allowed to handle classified content in her mail.
This is incorrect. Neither Clinton nor anybody else in the department was allowed to handle classified content in unsecured email. Every case of classified information leaking into email on an unsecured network is a violation, @state.gov email addresses are not for classified material either. That material is sequestered on a completely separate network. Anybody who sent Clinton classified email committed the same infraction she did, and that is still true if she was using email@example.com instead of a private address. The underlying issue is that the state department is careless with classified information.
This (obviously) does NOT include retroactively classified material, since that was unclassified when sent by definition.
While I think using a private server was stupid and Clinton should fire the people who recommended it and publicly apologize to both the american people and the staffers who were told to stop telling her it was a bad idea, Gowdy's inference that competently wiping a computer implies wrongdoing is just incorrect and dangerous and seems unconstitutional.