Yeah but Severino has to know enough about Ross to know his fastball has a lot of swingback action. That's too dangerous of a location to ask for given the movement on Ross's fastball.
EDIT: And that's a great spot to attack against most lefties who tend to have a bit of an uppercut in their swing but Gonzalez is not most lefties and they should know that from the scouting report.
It's not on the catcher if the pitcher throws a meatball unless he asked for a meatball, and Severino didn't ask for a meatball. If a guy's fastball runs 3 inches, you don't put the target 3 inches inside of where you want it. I've never had a catcher do anything but put the target where he wants the ball (or in a place that tells the pitcher to bury it), nor have I really seen anything else. It's the pitcher's job to get it there. If he doesn't want to or can't get it there, he shakes you off or steps off once he sees the target.