I think they’re using the wrong kind of locks. What you want is a good lock on the door of the computer room!
“attacker with physical access steal data from memory and encrypted drives. “
If someone has physical access to any storage media it is vulnerable, sooner or later it gets cracked. This is why you have locked sever rooms. Thunderbolt is pretty good tech very fast and robust.
Physical access has been "game over" security-wise since before there were computers. If someone has physical access to a computer, or a filing cabinet, there is usually a way to get the data out.
If it's encrypted, they might only get the encrypted data, but they can take it home and work on it at leisure.
Physical security has to come first -- without that, nothing else matters very much.