Checked it out here, it's "The many loves of the Amazing Spider-Man", dunno if another comic shows it, but at least there's this one:
The way it's worded here, while it's hard to say if they were close friends, it does seem they met at least once before, and their interactions with each other during the story at least put them in friendly enough terms:
So I'd say it's a screw up, Carlie says "That poor girl... The one who got thrown off the bridge", which really implies she didn't even remember Gwen enough to connect the dots, even though their fathers knew each other, and on the list of love interests, we have a quote about adult Carlie talking about Gwen, so Carlie still remembered her:
https://i.imgur.com/aPAHNaP.png
If it was just this quote, I would understand forgetting this detail, but there's a mini story that has Gwen and Carlie meeting, and talking like they interacted before, so yeah lol.
I honestly see Superior as a mediocre story as a whole, so I don't hold it much against it to be fair lol.