Is it harmful if the ink from the edding 8000 freezer marker comes into contact with the frozen goods?
No, but it is important to say that the ink of the edding 8000 freezer marker must have dried well on the bag. In this case, there is no danger if the thawing frozen goods ever come into contact with the marker.
In general, however, you should make sure that the markings are written on the outside of the bag.