I'm still not convinced it's a stylistic problem vs just poor execution.Because the performance wasn't good enough, nor is the 'traditional way' good enough in the modern game.
Beating the All Blacks or even Wallabies has been dependant in general on them having off-days rather than the Boks having good days in the last 8 years.
If they front up, which they usually do, there is nowt to fall back on. See the same for losses against Ireland/ Scotland.