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 episode 3.Daredevil: Born Again episode 3 saw Matt Murdock back defending clients as he took on the job of handling White Tiger's case. The vigilante had been framed for killing a cop after he tried to stop a pair of corrupt officers attacking someone.

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