flare pilot you are right, a piper cub can stall just the same as any other aeroplane, and the recovery is the same. However it rarely does it at night, in cloud, rain and poor visibility when it's crew are not expecting it because they are not familiar with the conditions they have been flying in.
The crew of that Q400 had to do one thing to prevent the accident, and that is to fly the aeroplane as they always flew it. 180 knots on base leg and 160 to 4 miles with the aircraft configured at the places they normally configured it and they wouldn't have crashed. The fact that they failed to do so, and failed to react to the speed tape warning them of the impending stick shake, and then failed to react to the stick shake properly probably would not have been avoided if they had spent 1500 hours bumbling about in VFR single engine aeroplanes. It might have been avoided if the 1500 hours had been a bit of flight instruction and then single crew IFR in a PA31 on cold dark nights, but that is not what the rules require.
Latetonight, as an aviation professional you must realise that the number of posts a person makes on pprune has no correlation to the number of hours in their log books?