It's a huge node when it's operating - but not necessary when it isn't.
I've taken a half-dozen kids to the zoo before - it was a heck of a lot easier on transit, than coping with the paperwork and H&S precautions for putting them into a mini-bus or a couple of private vehicles. And with my own, transit is so much easier than driving, if it get's where I want to go.
Can't imagine why ... it's what, 10-15 minutes from Pape Station on a Don Mills Bus ... a bus that comes as frequently as a subway train.
It would be - I was looking at the zoo to provide additional ridership to a very empty area - rather than being a destination en-route. The question is how much would the single-stop extension cost?