It COULD cause problems if the writers go that route. But I don't think they will. Stark literally revealed his home address on national television and Happy Hogan (or should I say Foggy Nelson?) and Pepper Potts are still VERY much alive.
I think Murdock should have some swagger like Stark, Strange and Fury. He's more than capable of taking care of his friends and family (especially if he has the Avengers by his side). Plus the MCU has differentiated itself right from its beginnings from other superhero franchises by getting rid of the secret identity trope. And they have been MASSIVELY successful because of it:
https://screenrant.com/mcu-marvel-he...tities-reason/
I think Feige has a deep disdain for secret identities and I don't see him giving them to future characters in the MCU.