This is very interesting because it shows how many neighbourhoods are functionally urban as opposed to densely populated. There are definitely some surprises though. I'm wondering how on earth Ville-Émard can be classified as a "transit suburb" when most of it looks like this:
https://maps.app.goo.gl/hToyKoim9DJCsrmb7
And it has a general population density of around 100-150 people per hectare, which is similar to Toronto's west end and many "active core" parts of Montreal. But I guess it depends on transportation modal share, and being somewhat peripheral means there's just that many more people using cars compared to some very similarly built neighbourhoods elsewhere in the city.
Edit: Actually, looking at more cities I'm a bit suspicious. I would consider all of Nanaimo to be suburban, even the areas right downtown, and yet there are quite a few areas listed as "active core." I suppose a better metric for urban/suburban would be one that finds a way to include both transportation data and population density.
Edit 2: I was thinking about this today (and yes, I do somtimes walk around thinking about SSP theads) and this functions really well as an index of car dependency. Somewhere like Ville-Émard might be dense, it might have direct access to rapid transit, but something structural is preventing it from being "active urban."