Regardless of the cause, he should lose his license.
And, he should lose his job. Zombie walkers shouldn't attend cabinet meetings. Having lost meta-level control of their actions, how do we know they won't give overly forthcoming answers to requests for sensitive information?
Having a medical problem ought to be a complete defense to the charges against him, but, we do have to carefully analyze whether, or not, he is a security risk.
While I do agree with you, considering how useless the Commerce Secretary's job is I wonder what info he'd even have to leak. Ya think he'd accidentally release secret weather info from the NOAA, or maybe he'd spill the beans on classified Census data?