This video was also shot in the same marina, I was a couple boats away from where this was shot, on the right. Note the rock lining of the inner sea wall, then at about the 3 min mark you can see the wall breaking up and the stones being washed into the inner hrbr.
Another vid, same marina, different storm I think.
The first winter we were along the wall, the next two winters we moved to an inner slip, didn't get the direct hit from waves but still had a lot of surge.
Then around New years of third year had a calm weather break and shifted the boat east to Genoa for a few months before making the run down to Palma.