Yes, I agree. There are still several around on the TCH in Alberta:
-several on the mainline in Calgary, though Stoney Trail bypasses these now
-TCH and 100 St/Garden Road east of Stoney Trail
-3 or 4 in Strathmore
-a few through Redcliff and Medicine Hat (I'm not sure how many for sure)
There are a couple others that aren't signalized but should be candidates for upgrades to interchanges in my opinion, TCH and Hwy 36 just west of Brooks springs to mind right away.
Here's Moose Jaw during the day from the winter trip (we did one in October too, but those videos will come later because I didn't want to post winter videos in the summer).
• Video Link