They are supposed to be introduced and appear in films laters, that's the case with every Disney+ show.
I am not huge fun of Disney but a least they are trying. Women directors on the white male shows, people of color in front and back of the camera on others. Yes it would be great if every character got a movie but then we would have to wait years for Ms Marvel to come. More than five or seven.
Eternals, Black Widow and Thor 4 are women led movies, Shang-Chi and Blade POC led movies. The only white male movie in phase four is Doctor Strange and he costars with Wanda.
They are trying.