Well usually in macro-scale events there's enough normal, real causal flow to establish actual reasons something happened rather than "because of Everett Branching."
The problem being that if you accept the Everett Interpretation, then yes it really did happen that way.
There is no problem. If you accept the Everett Interpretation, it really did happen that way, but the odds of you experiencing that are so miniscule that we can ignore it.
If you accept QM with any other interpretation, it really could happen that way, but the odds of it turning out that ways are so miniscule that we can ignore it.
Yes, there is a difference in principle. But in practical effect they are the same - astonishing events are both possible and so overwhelmingly unlikely that we can usually discount the possibility for all practical purposes.
The problem being that if you accept the Everett Interpretation, then yes it really did happen that way.