Samus has a lot of enemies, just so you know. Plus, Pyrosphere has been known for months, and no word of a stage hazard.
What are your other reasons?
Samus has a lot of enemies, but Ridley is the fight from that spot in the Pyrosphere, and is also the character most like what Sakurai described. Traumatic characters for Samus: Mother Brain (Assist trophy), Adam (not an enemy), Baby (Possible, but not fitting with the stage), SA-X (Not fitting for the stage), Ridley (fits description, fight him in this spot, Samus has mental breakdown right before fight). It's obviously not 100% Ridley Stage hazard until confirmed, it just seems likely.
I'd rather not discuss other reasons why I don't think Ridley is playable because I feel like that's off topic. You can PM me if you really want to know though.
I wouldn't automatically dismiss for a not wanted character. I never really debunk for a character I really don't find likely. Even, say, Pac-Man, Shulk, some others.
Well not really an un
wanted character, just one I don't find likely based on evidence we have (Sakurai implying he's a stage hazard). I don't find Miis or Pac-Man likely but I don't dismiss because of them. I dismiss Ridley because of Sakurai's statement, and because I feel like Ridley is just an attention grabber trolls use. If some other stage hazard is revealed for Pyrosphere, I'll be open to Ridley suggestions again.
Being neutral ground here.
I always find it hilarious that no one ever thinks of Vorash.
You know, the boss of Pyrosphere?
Vorash is not even memorable, let alone traumatic. You also don't fight Vorash in the area the stage is modeled after. You fight Ridley.