Chile, insinuating that the song wouldn't have gone #1 without Ari IS discrediting Gaga as an artist. You're acting like she's a brand new artist on the scene.
Whether or not she's had a solo hit the past 3-5 years isn't the point. Monsters don't care whether the song would've gone #1 with or without Ari, because the point is that it DID. And that's a fact you're never going to be able to change, and that's what's gotten you so pressed.
We know Ari lent plenty of starpower to the song, nobody is denying that. But that's literally what collabs are for, to bring two fanbases together for the purpose of getting a hit.
Maybe let's see Ari collab with your fave next time and see if the song goes #1 if you think she's the golden ticket to a hit.