I think you're slightly overstating the benefits of your argument. Though I don't categorically refute your thesis that people would switch, a difference in 8 minutes is not necessarily beneficial enough for the average person to take that extra transfer. I say this as someone who used to live at Warden & Steeles and would find that extra transfer unnecessary/annoying. Taking the 68 Warden down and switching onto 85 Sheppard East or 39 Finch East only happened for me if the 53 Steeles East was taking a really long-ass time (which most of the time it didn't since it has better headways than the 68). For somebody like me at least, taking one straight bus ride all the way to Finch, getting a double-double, and then getting to choose any seat I want is much better than having to transfer twice, get no coffee, and have no seating all the way downtown, even if it's 8 minutes faster.