The article mentions that the damages awarded by the judge wouldn't suffice to even buy a chicken coop on the island. My guess is that property prices are quite unaffected by this stunt.
Maybe the real reason why nobody spoke out was the fact that the guy flattening the house was Tory’s biggest employer. The hotel Óstan Thóraigh has been at the centre of island life since the late 1800s. The hotel and general store was supplying everything from salted fish to marine chandlery to the island.
The hotel is for sale now. It didn't survived Covid. See https://www.irishpost.com/news/irelands-stunning-tory-island...