We're talking about a site less than a kilometre from a LRT station (others have said "walking distance," and it is), that is practically inaccessible on foot for many people because it is such an unpleasant walk. I don't think the answer should be to tell those people to take the bus to the train, adding time to their trip.
I don't think the reason we have buses on route 7 is to shuttle people to Ion because King Street North is so unpleasant to walk on. We should be making it easier to get to the stations.
No one is going to be walking north to ION from this development.
What are the destinations that people could possibly want to get to?
If they're going south to downtown, then they'll catch the 7 south, and transfer in Uptown. The 7 will be every 10 minutes. By the time you get to the ION station, a 7 will pass you going the way you want to go, and you will likely catch an earlier train in Uptown.
If you're going to UW, then the 201 will already give you a direct trip.
If you're going to Northfield or R&T Park stations, then yes, maybe you'll want to take ION. But I imagine those will be very few riders.
Sure there's the anti-transfer mentality, but people are still rational actors. Very few would prefer a transfer-less trip that takes 15 minutes longer because of a long walk and a circuitous route.