What they said is that it wouldn't have the same appeal, which is true. Someone shooting themselves by looking into the barrel of a gun as a joke is funny because it's a really obviously stupid thing to do. Luke lightsabering himself in the eye is funny first due to shock value, and second as a form of observational humor by pointing out how even though lightsabers are so obviously dangerous, there's not a single mishap where someone maims themselves with their own weapon in the movies.

Someone playing with a screwdriver and a few pieces of various metals is funny because its danger is unintuitive. It's so strange that someone can mishandle such seemingly innocuous objects and then die a few days later because of it, that it's comical. It's a non sequitur.

Weren't the Jedis actual wizards, and others were forbidden from wielding that weapon exactly because someone would get maimed? The weapon is tech but the reason they don't damage themselves is clearly spelled out magic.

Well, Luke wasn't a Jedi when he was first handling it, and Obi Wan didn't seem to mind at all giving such a dangerous object to a completely untrained person. Hell, he didn't even tell him which side to point away from himself.

Obi Wan knew who is it. He said "It's your father's" when he handed it to him.

Reminds me of "Do not look into laser with remaining eye"