Even though no one was seen dying or getting hurt, this was still considered too risky to leave unedited. It's an especially bizarre move when you consider that the bits with Goz and Mez are more or less filler. After seeing this I looked up the parental guide on imdb. In a filler episode in which Goku fell down to Hell on his way down Snake Way, he came across two ogres wearing shirts that said "Hell. A cartoon with that kind of warning might be hard sell to advertisers, but it's better than pretending that Blue Popo is any kind of solution. Then there's the problem with Goku's halo, which pretty clearly indicates that he's passed on.
Along with the fact that all the voices matched unlike the American dub.
Sometimes, censorship can be so insulting and unnecessary it's hilarious. Or that people who constantly punch each other in the face will sometimes bleed. After seeing this I looked up the parental guide on imdb. However, according to Toriyama, Dragon Ball started as a gag reel, and then was a show for children. Even though no one was seen dying or getting hurt, this was still considered too risky to leave unedited. However, this name would not fly in the American release since his name is literally a reference to the devil and the censors would have none of it.