Dude, that's not even that repression means, you're trying to say suppression. But even that's not right, changing your autonomic response isn't suppressing thoughts, it's letting them through and sitting with them.
It's the difference between pushing down your fear and getting over your fear so you don't have it in the first place.
No, it's repression by definition; you have a pattern of thought you've identified as illegal in your system, and instead of coming to terms with them, you're preventing their expression.
The juxtaposition is similar with the language models; a pattern of thought is illegal, and instead of coming to terms with them, their expression is prevented.
It's the difference between pushing down your fear and getting over your fear so you don't have it in the first place.