What sense does a barrier make if you can overcome it by save scumming?
If that's how you feel then don't save scum, what's the problem? If some players want to save scum and enjoy the game that way that's up to them. It's not like we're talking about a mechanic in the game that has to be used, it's entirely down to you as a player if you reload the game to try to get a different outcome. Is the issue that you can't resist the temptation? If so that's not a good enough reason IMO to restrict how other players play their game.