"World rugby has put in a lot of money and effort to improve standards and the so-called minnows have played well so far."
Namibia counterpart Phil Davies agrees the up-turn in performances from the lower-ranked nations is no fluke.
He said: "When you look at the Japan victory they had been building that performance over a couple of years.
"I know the preparation Georgia have put in and we have put a lot of preparation in as well. The effort the players put in has been phenomenal."