If you want to play the game of "If it's happened with other superheroes" logic where you want to go through the entire history of comics, it's
impossible for any comic of any story to be innovative because another came first over the past 70 years that did the same thing or similar. We can say the same thing of movies as well and TV Shows bar maybe 1 or 2 outliers that will then have their same concepts done several times after. With your logic,
nothing can be innovative, because there's always a story that has explored those themes or done something similar, so therefore there'd be no point in ever discussing it.
Fortunately the question in this thread isn't "are the days of creativity and innovation over for comics?" it's asking about "Spider-Man" comics. So that's where the discussion stands and bringing in other comics is irrelevant and moot. They don't have to do with Spider-Man so they don't belong in the discussion.
So yes, it's new to Spider-Man, so that is the worldview we stay in. If you want to suddenly extend it to "All comics", then you're never getting innovation so the thread would be pointless. Fortunately this thread doesn't. So "But I've something like it somewhere else before." is irrelevant.
So when it comes to innovation about Spider-Man, it's best to stick to the subject and world of situations being about and within Spider-Man. So whatever you saw "elsewhere", is irrelevant to it happening in Spider-Man. Saying "A mature Black Cat dating Spider-Man isn't new.. because in other comics heroes have dated each other before.." means absolutely nothing, because it comes down to "Did it happen between Spider-Man and Black Cat with this dynamic?" and the answer will be no, and therefore it's new. It's not a semantics game, it's about Spider-Man and his world and experiences. So any topic about what it does new, pertains to it alone.
But if there's ever a "Are the days of innovation and creativity in comics done?" your "But I've seen it done in other comics" go-to argument will have an actual relevancy to the discussion at hand.
Otherwise you become that person that if something new happens, you try to dismiss it because something similar happened in some story, somewhere at some point. That person that if Peter Parker ever lost his mind and cut off Norman Osborne's head and became a dictator molded by a life of trauma and someone goes "I did not see that coming! I've never seen Peter taken in that direction." says to their surprised person "Seen Wonder Woman do that to Mera, it's nothing new."
So please, for sake of the actual topic at hand, I humbly request you not be.