I guess people forget, or don't know, that Stephen Strange's origin is rooted in this type surrounding. That Strange having facial hair is a standard for the character.
Perhaps passively implying that Marvel is ripping off Nolan, which couldn't be further from things but that's the tone and idea I've been seeing on these posts about the net pushing the "Batman Begins 'joke' " angle.
We could get pedantic I suppose and discuss when Batman's journey and training was retconned into his lore vs Strange's origin but that seems a waste of time.