Not sure where you're getting all the Toronto love from but he spends his off seasons there training. And he just started spending his off seasons there recently - this is from an April 2018 SI article:
Upon returning from Coachella, Hall moved into a downtown Toronto apartment to spend the offseason with Andy O’Brien, the longtime trainer of Sidney Crosby. In years’ past Hall had always worked out in his hometown of Windsor, Ontario, under the supervision of his father, whose inventive programs included bobsled-based acceleration drills and catching mini footballs to train spacial awareness. But Hall wanted to skate and conduct on-ice skill work alongside fellow NHLers in the city.
ETA: quote taken from this article https://www.si.com/nhl/2018/04/12/taylor-hall-new-jersey-devils-mvp-playoffs