Why? It's not like she's was turned into a one-note bad guy with vague motivations.
Felicia probably had one of the most significant character developments or arcs of any character on the show.
And she still basically developed from an initial antagonist in Spidey's life to his partner/lover, which is true to the comics.
I think there are definitely elements of the 90's show that haven't aged well but at the same time I think what it was able to accomplish and how true it was to the look and feel of the comics is something that should be appreciated.
But that's just me.