It would make sense, financially. It's really a waste to not use him to take advantage of markets that are underserved yet spend more money... Why continue to ignore these markets just to promote another white guy that's already had 5 flicks in the last 15 years? And they want to make him young again?
Miles story would be refreshing for viewers. They could fall in love with Spider-Man all over again cause Miles is the future of Spider-Man, if they actually promote him
They have the power & I think the responsibility to feature Miles Morales as Spider-Man in the MCU