Nope. As I said Enma is a powerup for it increasing Zoro's haki usage efficiency and control. That's literally it. Everything else is you rambling based on your headcanon. No Enma isn't cursed, the Kitetsu swords are cursed. Learn what you're talking about before literally typing the same shit repeatedly and expect to be taken seriously.
Lol what? I said both of those aren't powerups - neither the sword slash sky walk nor fire fox style. I have never called sky walk a powerup for Sanji either. If anyone's nitpicking here, its you.
It literally should be useful atleast most of the time. If the opponent is not a fire user, it's literally a party trick and completely useless.
Rumble Ball and Sulong don't even compare to fire fox style. Chopper got a time limit increase to his monster point - something he would use almost every single time in fights. Sulong has literally been shown to increase all of one's physical abilities and electro.
Yes, having a counter to fire based attacks only protects him against those. He literally doesn't get stronger based off a very situational move, exactly like how getting a technique whereby he can fly using slashes doesn't make him stronger. Exactly like how Sanji doesn't get stronger off of Sky Walk itself.
I'm not nitpicking anything at all. You're the fool who's been running around in circles and trying to justify a new technique as a powerup.
My stance has always been clear - Enma is a power up because it increases his haki control and usage efficiency. Foxfire style and this new "Clearance" slashes are not powerups by themselves since they are very situational techniques. Similarily Skywalk is not a powerup in itself for Sanji as well.
Overall in the Wano arc Zoro got 2 powerups - Enma and unlocking CoC. That's literally it.