The Manu Sevens bounced back from a first up loss to Kenya, beating the USA and Canada to make the Cup quarter finals for only the second time this season.
After losing at the death to Fiji they edged England 22-17 in extra-time before gaining revenge on Kenya 19-15 in the playoff for fifth place.
Sir Gordon said it was Samoa's best performance in a long time.
"It was just really gutsy really. We had a few injuries as well and a lot of these players playing under that sort of pressure and those sort of crowds is pretty new to some of them," he said.