That video has the title "extreme weather". That's a very liberal use of the word "extreme"
Watch the helicopter coming in to land 30 seconds into the movie. It lands at the end.
This has as much relevancy as "nerrrrrr, dumb plane, why did they build it if it can't fly from NYC to Australia" while looking at a picture of a Dash-80, a regional commuter plane.
Fantastic example of stroboscopic effects in video.
(My comment may sound sarcastic but I am serious: the baltic sea has always seen other types of boats, both for leasure and commercial)