I wondered about that when I came over there today. It is quite likely less of a problem than the old road, but I've noticed that Capetonians really struggle with the whole traffic merging manoeuvre, even when they have long on-ramps that should allow them to find a gap and match their speed, so they could easily smoothly merge into the traffic.
It is an improvement for that section of road, but not putting up barriers to prevent someone who has taken the wrong ramp from trying to cross mutliple lanes when they come down the hill is an oversight. The improvements to Hospital bend also do nothing to alleviate the major choke points along the M3 like traffic lights and bad on-ramps or the ridiculous M5 to N2 interchange. Hopefully there are plans to fix that as well.