Having just completed a road trip to New Mexico, I might as well jump in.
Yes, 75 S is better than before but still an embarrassment. Like Biff said, you might as well route all of the traffic over to the northbound roadway and do a proper fix. In the States, they'll do that and still maintain a 60 - 65 mph speed through the zone, unlike in Canada where we'll drop it to 60 kph!
If anyone needed an illustration for how well they do roadwork versus here in Manitoba - just south of Fargo is a slight jog to the east on I-29. You don't really think anything about it because the quality of the road doesn't change, unless you look to the west and notice that they're rebuilding the road from scratch. So they built a detour to interstate standards, so that they could do a rebuild on a stretch of the road.
And it's not just the interstates. Instead of taking I-29 down to Oklahoma City and then running west, we shifted over at Omaha and went as the crow flies. Their state routes are as good as the TCH and even when Google Maps gave a shorter route that put us down some back-country 2-lane road, it was still in excellent shape.
It's just so depressing to come back to this province's roads.