Jacko
As for Telic, it was quite possible without carriers, as Granby showed.
But
Granby didn't involve an amphibious assault by UK Forces.
Telic did, and
Ark Royal and
Ocean were key to British operations, particularly the assault on the Al Faw peninsula. You may find
this link to be of interest.
The performance of Royal Navy (RN) forces in successfully accomplishing their objectives confirmed the development of the RN’s joint and expeditionary capabilities since the SDR.
The operation underlined the strategic value of the sea for the application of combat power, early theatre entry and power projection. This took the form of amphibious forces, sea-based helicopters, cruise missiles, and the use of naval fire support and logistics during the Al Faw operation.