Born Again detail could be read as a Miles Morales easter egg, but there’s one reason why it probably wasn’t an intentional reference to the Marvel hero. The MCU first teased Miles Morales’ introduction in Spider-Man: Homecoming,

Born Again hints at Miles Morales' existence in the MCU, teasing multiple Spider-Men and exciting future possibilities.

Marvel fans are always keeping their eyes peeled for easter eggs in the films and TV shows that are released, and Daredevil: Born Again just delivered one that could hint at the existence of Miles Morales in the MCU.