I went to school here from 2003-2008, moved away and moved back in 2011.
The area's population has increased by ~20% since 2012 (~the death of RIM, according to its stock price). In 2011, it got regional train service to Toronto. In 2019, it got a local light rail train.
The university area that the OP seems to be referring to is, IMO, more walkable and bikeable now than before. Some of the towers are mixed use, with ground floor retail.
The city is definitely quite different from the early 2000s, though.
First floor mixed use retail can address this, but sometimes those spots sit vacant because of cost or other issues with rhe space.
My post was a bit too negative I suppose, some people probably like the tall buildings surrounding you when you’re walking, I mean it works for New York City right.