Not really, it'd still be equivalent to the POTUS showing up in a Taliban base with only the secret service.

Edit:

BTW, that wasn't a false equivalence. No attempt to draw a comparison with the Stormcloaks and Taliban, just an illustration of why it's a bad idea for the Emperor to show up without adequate security.

No

The correct equivalent is the President of United States is visiting Vatican, and the Army cannot occupy Rome just to make sure the President is safe, the Roman security personnels will have to do that. The President can only bring bodyguards.

OP is claiming bullcrap that the Stormcloaks basically let the Empire re-occupy Solitude just so he can stay for a while.