Marc,
I don't know anything about the Governor General's website but you are correct in your assertion about the title of the R22eR. The designation of the R22eR was changed by the Canadian Army some 44 years ago. I refer you to Staff Duty Letter 63/39 dated 31 Dec 1963. This order stated that the approved redesignation for the regiment's battalions would be 1er, 2e, 3e, 4e and 6e Bataillon. The order also changed the designation of the regimental depot from 'The R22eR Depot' to 'Le Depot du R22eR' and changed the spelling of Regiment from English to French (sorry for the absence of appropriate accents). All of this became effective on 9 Nov 1963.
As a matter of fact, while the Regiment was raised in the Permanent Force as the 22nd Regiment in 1920 and was given the title 'Royal' in 1921, it was renamed the Royal 22e Regiment in 1928. So there really has never been a Royal 22nd Regiment which could cause any historians confusion.
I must say however that I don't think anyone who has served in the Army or the Land Forces have any questions as to the Regiment's proper designation. As well I have never heard of anyone asking if the Vandoos served on the Plains of Abraham and I don't foresee that ever becoming a major historical problem.
Dan.
PS: Marc, please fill in your profile. That will allow you to introduce yourself to the rest of the gang.