I don’t think it’s treason...but circumeventing the chain of command and discussing operational readiness and other OPSEC related issues to those without a clear need to know are punishable.
I think the General engaged in hyperbole in trying to convey a message...something that someone of his rank should know better than to do.
A simple order to the people in the Command to not discuss any operational information and to refer any and all inquiries to Public Affairs is typically sufficient...and normally the case.
The “average” airman is not to take it upon themselves to be sources of information. There’s a lot they don’t know and can cause harm by discussing things they’re not supposed to.
Answering a question from an elected member of Congress should not be ‘treason’. It should be called ‘duty’.