I think we as long term rugby league fans who have followed the game for decades come from this from a slightly skewed perspective.
From following social media, and my discussions with my Canadian friends...Torontonians love a winner, and want to embrace a winner, so in the very short term ie. next few home games, these wins will probably attract more publicity, and help build up a fanbase and general awareness of the team. As Canadians learn about the game, they probably won't mind the blow out scores as much. Most even enjoy it.
They'll need to start altering their marketing direction a bit though to make it more about the journey of progressing to the super league, in addition to continuing to attract and retain fans with other activities and lots of engagement post-game - which they are doing really really well right now. They've even taken advantage of Moi Moi, and built a genuine brand around him as someone you turn up to see in the flesh. However, they can't continue to claim that every match will be tightly contested. I've watched every game so far. It's men against boys. When the Wolfpack play poorly, they win by 20-30.
If this was any other dinosaur-run rugby league club I'd be worried. I am quietly confident with everything I've seen from how The Wolfpack have done things, and the genuine passion from those in charge in bringing the game to Canada that they'll be able to adjust.
tldr; The target market is likely to be much more tolerant of these lopsided contests than we are.