Nope, she is a native of gensokyo and ZUN said hecatia outranks everyone from gensokyo and the lunar capital
While i doubt Okina is meant to be at that level, ZUN can change his mind anytime about stuff like that, like how Sanae was supposedly too strong to be playable but then got in 3 main shooters. Statements don't really set things in stone, and can be made wrong by what actually happens later in the setting. Like, what if in the next game he wants to introduce an even more powerful character from Gensokyo or the Moon? He can't do it? Does he have to specify they are stronger than Hecatia?
While i doubt Okina is meant to be at that level, ZUN can change his mind anytime about stuff like that, like how Sanae was supposedly too strong to be playable but then got in 3 main shooters. Statements don't really set things in stone, and can be made wrong by what actually happens later in the setting. Like, what if in the next game he wants to introduce an even more powerful character from Gensokyo or the Moon? He can't do it? Does he have to specify they are stronger than Hecatia?
I don't recall ZUN saying anything of the sort no.
The only really prominent examples of ZUN saying someone is really really strong is the Watatsukis. Enough that he made the manga so he could get away with showcasing them without making the player suffer through what unholy Cheap shit they're gonna throw at us (which we painfully got a taste from other lunar people in LoLK).
I think Hecatia being strongest is legit, the fact that she could imprison every lunarian in the dreamworld on a whimsy is already saying something about her, and these are the Lunarians Yukari herself admits no Youkai is actually ever a match of in every aspect ever (cit. Silent in Sinner Blue).
And if you think about it, her extra could have turned extra disgusting if she just summoned all three bodies at once. But Zun had to put a pretext of she's playing around because everything's already over with Junko's scheme.
I don't recall ZUN saying anything of the sort no.
The only really prominent examples of ZUN saying someone is really really strong is the Watatsukis. Enough that he made the manga so he could get away with showcasing them without making the player suffer through what unholy Cheap shit they're gonna throw at us (which we painfully got a taste from other lunar people in LoLK).
Q: Do you think Sanae will be playable at some point? Z: Not really. It might be hard to pull off since she's a goddess with incredible powers.
I'm not saying Hecatia isn't the strongest for now, just that if ZUN felt like it he could make that statement obsolete because it's an out-of-universe thing.
In-universe, we know there are various ways for the characters to become more powerful (eating a hermit's flesh gives youkai god-like powers, Okina's servants or Junko's ability do something similar, the Miracle Mallet can be used for anything as long as you can ignore some consequences). ZUN just has to use them instead of making them single-time things and forget about them (although admittedly i wouldn't hold too much hope about any of those things happening).