The last edit in this bikepath is misleading.

A: Yes, there is a gate that is marked as closed for everyone, but it is hardly visible in some zoom levels as the "wording" Bispebjerg from the station is visible
B: The bikepath doesn't even exist now. The area is used by the construction site (and will be used until 2026 if I read the Danish signs correctly). You could argue that it still exits but tons of building material are on top of it. I expect that this will need a complete new surface before it is restored to the public.
C: A second gate would need to be put in place, as there are two gates that make it inaccessible.

In fact the map was correct until what I believe to be about one month ago when the bikepath had been removed. Someone made an edit there though, putting the map in a less-usable state.