I told them, their call.
Personally, I'd leave it as is, just made sure it was lubed well. It is a brand new gun, can't even blame range rental neglect or wear. If that is what's coming out of factory, range patrons and prospective buyers deserve to know that the gun is nearly guaranteed to be needing work if they bought it.
One thing I forgot to do is to check if this was the original style 5 incher or an updated one.