So it was a landslide that generated a wave?
"Look at these massive steep fjords, carved out by ice! Oh wait, one of these steep sided, very deep cliff faces collapsed? MUST BE CLIMATE CHANGE!!!"
How do they think these fjords were made in the first place? Repeated freezing and thawing cycles perhaps?
Anyway, the area didn't really look like it had been swept by a 200 meter wave, more like a muuuuch smaller wave that reached 200m up the coastline in the places they measured.
If you actually read what they say, the waves that bounced around were a (still impressive) 7 meters high but the "200 meter" number is just how high the water got opposite the collapse.
Typical lazy journalism with a clickbait title if you ask me.
Still, woulda been a HELL of a surf, maybe Tom Cruise can do it for M:I 9, though Bond did it first