Well, I did explain why I think that. It was in the rest of the sentence - the bit you decided not to quote. Much as I've enjoyed the way Japan's played so far, I think SA has the form and knockout game experience to win comfortably. They have a better team and a better coach than they had when Japan upset them in 2015.I really don't think it's hard to see at all. Their entire game plan is made to beat teams like SA.
Would love to be proved wrong, though.