Stormonu
NeoGrognard
A balor is a type VI (6) Demon, as shown below. It being called a "Balor" was a late 2E thing when they were brought back for Planescape. It should also be noted that "Balor" is the name of a specific Type VI demon, not the "class".But it isn't haphazard, is what I'm saying. A balor isn't a demon in the same way that a goblin boss is a goblin. The thing about a balor is that it is a balor; it being a demon is secondary. If we still had the distinction of some demons being tanar'ri demons, having tanar'ri as a grouping would make some sense. But grouping demons together would be pretty close to grouping all Feywild creatures together.
Which makes me wonder ... why was "Chain Devil" chosen over Kyton and "Mind Flayer" over Illithid, but Balor, Vrock, Maralith, etc. chosen instead of "Demon of Type"? And the answer would be "because", just like the new MM sorting order.