For example:  Take a drive some day down the Cape Shore road on the eastern side of Placentia Bay.  There are about a half dozen old outports between Placentia and St. Brides.  Not only are all of them at 50 to 200 m above sea level on steep hills or on top of cliffs above the shoreline, none of them have wharfs or fishing sheds remaining at the shoreline because they fished out of the government wharfs at Placentia or St. Brides since the 70s.  And of course most people living in these outports now have jobs in Placentia or St. Brides, or run their own businesses, or are retired older folks.  And they have no reason to move.

Again, if you would read the study you posted, it says that what is most at risk from rising sea levels are things at sea level -- wharfs and fishing sheds, breakwaters and beach roads.  It doesn't say outports are at risk because they aren't.  Some outports may be at risk, or maybe just their wharf if they still have one, while others are at no risk at all.