Probably Revenue Management haven't figured out how to optimize pricing to YHM yet.
Yeah, they've got 6 roundtrips daily, so what's the "load factor" going to be for these.. 10-20%? I can't imagine they will run these at a loss for a long time..
Some lounges give you a view of the taxiways and runways. The YYZ Cafe has a view of the roadway in front of the terminal, perfect for spotting the AC YHM-YYZ service. I was too slow to get a picture.