>>44727942Heatran is literally a legendary in the classic Gen 1-2 sense.
It was introduced in a sidequest you could honestly ignore, and in every subsequent game that it's available. It's special power isn't godlike, just making a volcano erupt if it seethes hard enough, which is comparable to Entei supposedly barking and making Volcanos erupt.
It's simply an exceedingly powerful and rare Pokemon, like the birds or beasts, literally something a Legendary or Mythical was before the lore powercreep.
If anything, the constant complaint I see about it is that it isn't "Legendary" enough which only makes me think that some people want it to be basically another Pokegod tier Legendary.