Am I? I think South Africa's backs are pretty good too; the English backs may score more tries than the Fijians, but I'd expect that they'll have a better platform provided from their Forwards to work from.
I don't think I actually said that the Fijian backs are better anyway; I just looked back at my posts ... might have difficulty containing one or two, ignore them on the counter attack at your peril, the mismatch will be in the forwards etc.
The post that you are replying to here is mainly to address what I see as a falsehood, that they can't play in the wet, and that there opposition has been weak to date.
... That's absolutely right, the smart play is to keep the ball away from Nadolo (he's not a bad defender though)