It seems to me many of the apartments being built here now are around 6 storeys, so not less than 4 storeys, but IMO they can still fit in well especially in an area with a mix of housing.
I wonder what those numbers would look like if they were to account for 6 stories or less, instead of 4. My guess is that it would be even more skewed towards Edmonton and Calgary. For all its issues, it seems like Alberta is a few steps ahead of the rest of Canada when it comes to "getting" missing middle.
I will give a huge shoutout to Kelowna on this, tho. The central and downtown adjacent areas are densifying quickly with stuff between 4 and 6 stories on average, and high quality at that, and a good mix of units being offered. My building, for example, has 206 units, in 6 stories, ranging from studios to 3 bedrooms. About 2/3 of the building are studios and 1 bedroom (136 units), the remainder are 2 bedrooms (50 units) and 3 Bedrooms (20 units). It was the first one in the block where I live, with another one down the block that just started occupancy last month and another 4 currently under construction, and another 2 in the utility and excavation phases. All of similar size and with similar unit split, and some are condos and some are rentals, a few of them will even have townhomes and two of them have CRUs that will likely become a corner store and a small cafe or something. .
2 Years ago, if you look at the map, this area was all older bungalows, housing less people than each of these buildings houses individually, right behind a busy mall, several amenities, bike lanes and arterial roads. Now, with the second building that just started having people moving in, there are as many 3 bedroom units in the area as SFH, we have a mix of people going from university students to families of 4, and everything in between, in the building. The park that centres the area is always busy, most people walk to the amenities at the mall just across the road and our bike storage is as full as our underground parking. It is, honestly, the kind of stuff that I would LOVE to see in Edmonton, and which I honestly believe we could see in many neighbourhoods there. It's appropriately dense and urban, but not overwhelming like towers, it feels nice to have families and people who might commit to be around for the long term (sense of community) and it makes the best out of an area that just a few years ago felt very suburban and underutilized considering all the amenities around it,