I had to laugh, because although City Ctr (or Billy Bishop, as it's officially known) is a busy airport, it's certainly not "terrifying"!!!
In addition to the fact that it is located on an island, and you have to come in on final over the water, the article touted the "clothing optional" beach on the island's west side as a contributing factor for why this airport is on the list.
Speaking from first-hand experience, I'd have to say that the nude beach is a bit distracting, maybe, but "terrifying"? Not so much!