The 1983 Mentzer Red Box and the Essentials Red Box introduce the DM role in similar terms:
Mentzer: “One person must also learn how to be a Dungeon Master (or DM) – the person who plays the role of the Monsters. The other booklet in this set is the DUNGEON MASTERS RULEBOOK, and explains everything the DM needs to know.”
Essentials: “One player gets to be the Dungeon Master (DM) – the person who plays the roles of the monsters and guides the other players on their adventures. All the other players create heroic characters using this book, but the DM gets to read the other book in the box – the Dungeon Master’s Book.”
In Mentzer, someone MUST be the DM, and in Essentials, someone GETS to be the DM. Instead of “whoever draws the short straw jumps on the DM hand grenade” we have “I’m Tom Sawyer and whitewashing the fence is fun!”
OK, that’s a little bit of hyperbole. We all know that whoever draws the short straw has to play the CLERIC.