I would argue that Storm is given her due, I mean she's been one of the X-Men A-listers for decades, and has avoided all the traps the others have fallen into and either died, turned evil or become a monstrous douchebag. She's the leader of the X-Men right now, I'm not sure what more there is to get?
Because in Marvel, being considered a god is kinda worthless, it's just a title. There's hundreds of Asgardians thats all considered gods, Ororo herself was considered as such by rural/tribal people in the middle of nowhere before Xavier showed up. My point being that being called a god is very easy for people with superpowers.
Being an omega-mutant however... that comes with something that has actual meaning since its a ranking of power that saying the designated one can do their thing to a frankly insane degree. And it then comes with a pricetag of the character vanishing to some degree.
Note: this is just my personal opinion, but I don't really get the need for the superpower-race and the need to be greater in that aspect. I mean, certainly we are fans of Storm because of her cool powers that were always vast, but also because of her personality. I just wonder what there is to gain by giving her a label thats usually meant death or limbo?