To be precise — the words of the Grand Mufti are the official pronouncements of the Saudi regime. For people who have a separation of Church and state (indeed much of the Western world), it may be difficult to understand the Saudi regime. The Mufti and the King are both part of the Saudi-Wahabbi regime
Their only allegiance, only ally is Islam and specifially the Salafist Wahab strain. They use the USA only for this purpose and have used it and American money since the 60s to pay for the spread of Salafist teaching across hte world