Automobile makers do not get to dictate what their customers do with the cars they built. If the buyer wants to chop the car, make it into a lowrider, put different wheels on, change the paint color, smash it, bury it, or throw it with a trebuchet, there's not a thing the automobile manufacturer can or should be able to do about it. John Lennon's psychedelic Rolls Royce offended some people. Some of these people had nothing to do with the automaker, they were just upset that someone did something they thought inappropriate to a product they admired. Lot of rock stars are great at puncturing sacred cows that people didn't even realize they had.
Some people get all bent out of shape over a flag burning. Others find book burnings offensive. Get over it. Let them throw copies of Huckleberry Finn, Harry Potter, and the Dungeon Master's Guide in the flames all they like. Nothing is lost, even more so if digitization has not been blocked. The best the arsonists can hope for is that nothing comes of it, as it could backfire and raise awareness of those works. On numerous occasions, vandals have tried to destroy works of art. If there are digital copies, destruction is practically impossible. In any case, a great work like the Mona Lisa can last only so long. It will inevitably deteriorate. If idiotic copyright laws and museum policies have prevented us from copying it into a more permanent form, for posterity, we deserve to lose it to the next time some insane person loses his mind and attacks the art. Rarities have been lost because the owner decided to destroy it. If there are good copies everywhere, the owner of an original can't deny a work to the rest of us out of spite, malice, revenge, or whatever, can't demand a big ransom not to destroy it. Can't mutilate it either through reckless bureaucratic policy, as was done to many paintings, including Rembrandt's Night Watch when they cut the painting down to size to fit a space. Then there are always Acts of God. Art has been lost in fires, floods, earthquakes, and other natural disasters.
I don't see why a work of art should be any different from a car. If the artists don't like it, it should be their responsibility to make copies or documents describing how to recreate it, before handing one over to a buyer. It's not like making a copy is so hard any more. Indeed, the biggest barriers can be legal ones.