They cannot plead ignorance - while Mannix's state-ment was reported in the Independent earlier this month, his comments were made on the IRB's own radio show, Total Rugby, in January.
French sports daily L'Equipe investigated the claims in May, raising the issue with the IRB who responded in a statement on June 6 that "The IRB can only act on player release issues if requested to do so by a union or if it is provided with credible evidence that would allow it to pursue its own inquiry."
Earlier this month Matavesi confirmed to UK Sky Sports' The Rugby Club that Racing players were paid to remain available for their club and not to play for their country. The IRB then released a similar statement that was amended to say that the source of "credible evidence" needed to come from "a union or recognised rugby body".
But under regulation 9.36, the IRB has the power "to initiate an investigation of its own motion" - there are no caveats as to where the information needs to come from.
Schuster says that if the IRB isn't prepared to enforce its own rules, "there's no hope for us and the other smaller unions - Georgia, Romania, the US - to compete at the same level as the big teams."
The Oceania representative is clearly fed up with the way rugby is run: "I don't believe in the old boys' network. It's time to shake up the system. Governance structures should be reformed. Oceania represents 13 countries, yet I have only one vote. Frankly, I find that strange."
Tier one unions - Six Nations and Sanzar - have two votes each, excepting Italy and Argentina who have only one, as do Japan and Canada. Oceania and the five other regions have one vote each.
The tier one nations have consistently voted themselves additional payments to make up for lost takings in World Cup years: last year they received £4.5 million each, while tier two nations like the Pacific Islands - excluded from major competitions and unable to generate any meaningful revenue - got nothing. In 2015, the additional payment jumps to £7.5 million.
England's RFU are set to make a profit of £17 million from this year's November tests alone; Samoa, unable to cover the costs of hosting tier one sides, lose money when they play at home.
Schuster's patience is running out: "People talk about what Argentina have done, and it's great. But the Pacific Islands teams have the ability to break through as well."