Barricade knows the general feelings of others mechs, related to his old allegiances and his field of work. Decepticon medics from his universe tended to carry certain... connotations, after all. Still, he's hardly going to bring it up or stop him from associating with other medics. They were all here to work, as far as he was concerned.

"You don't gotta stop on my account. Trying to keep a record of the whole journey, I'm guessin'? Not a bad idea."

Good idea to catalogue it in writing as it occurs, if nothing else.