I take it you are new to Spider-Man.
Cuz Spider-People have been a thing since like the 70s.
Miles Morales, Ghost-Spider and Silk are actually really really new in comparsion to all the other Spider-People so comic fans are not only used to it, but have embrassed it because we got a bunch of really cool characters out of it.
Ben Reilly, Jessica Drew, Anya Cor, Miguel O'Hara, Noir, Julia Carpenter.
Ironically I really dislike comic Miles even if on paper I really should, near literally every other incarnation of Miles is better than the comic one.
Literally a side character in his own book.
P.S
Ill accept no Slander of Cindy Moon!!!!!
Shes almost certainly gonna be playable or atleast featured in the stand-alone expansion or full on Spider-Man 3.
Introducing her in the post credits scene wasnt for fun......I hope.