As someone else pointed out, the Spider-Man: Far From Home theory could also be the reason why Nick Fury is personally in Europe with Peter Parker and MJ instead of having someone else from S.H.I.E.L.D. out to keep tabs on them.
Like Nick Fury, MJ is pretty sneaky and is always “creeping up on people,” according to the Spider-Man: Far From Home fan theory.
One of the first elements of this new Spider-Man: Far From Home theory notes Nick Fury has spent the last few years in hiding and hasn’t been seen a whole lot in the Marvel Cinematic Universe since Age of Ultron (Captain Marvel doesn’t count since it takes place in the 1990s) and adds the fact that the character mentions his wife “threw him out” in Civil War.
Is MJ the daughter of Nick Fury in Spider-Man: Far from Home?