It is I mean it is virtually a brand new gun. I really haven’t messed with it much because ammo got stupid so quickly. I don’t think I’ll ever be a “revolver guy” though.Make sure the gun is unloaded. Not a gunsmith but it's the first thing that's always said!
That point is depressed when the cylinder is closed by a spring loaded pin in the middle of the cylinder; when it's depressed the trigger can be pulled, when it's not depressed the trigger can't be pulled. You can see this by - with the cylinder open - moving the cylinder release back and forth and pulling the trigger.
Is the spring loaded pin in the middle of the cylinder firm, meaning hard to push w/ your finger? If it's not I guess it could get stuck retracted into the cylinder, thereby making that point not depressed and locking the trigger. But I'm at a loss as to how oiling that point would free it up anything in the cylinder.