The average meaning for using a damascus barrel is to shoot low pressure rounds. Nothing wrong with that. And based on this notion, one choses to use the damascus cautiously, without the need to demonstrate any different. There is no obvious need to demonstrate any different since we use already the minimum pressure.
Only that Stephen Grant and Birmingham Proof House tests and Sherman Bell suggest that we are missing on a lot of function. It's like having a race horse in your stalls and allowing it only a controlled slow pace stroll so that he does not brake a leg. Of course if you go faster there is an increased risc of braking a leg.