The British were always the artists who brought great fighting power from the smallest aircraft carriers. Now with the new R08 they have a really big ship. I wonder what they make of it.
It's not for lack of trying on the part of the RN that we haven't had a large carrier class until now, in WW2 we designed the Malta class to be on a par with the USN Midways but they were cancelled at the end of the warm and we had to make do with two of the three Audacious class instead as our main strike carriers. Then there was the '1952' class of carriers which would have been in the same size range, but lack of funds aborted the programme, and ten years later the CVA-01 class was yet another stab at the big carrier game.
The Invincibles weren't small because we decided small carriers were better than large, but because small carriers were infinitely preferable to no carriers, which was the stark choice on the table. At the start of the CVF programme, the designers consulted with amongst others, the primary users of the decks, the FAA pilots (then flying Sea Harriers), and the one thing they all agreed on was the next generation of carriers had to be BIGGER! The only metric by which the Invincibles could be judged deficient was size, they were too small and cramped to operate an effective number of aircraft, though as stated earlier, some are always better than none, as proved in the Falklands.
And as you can see the 'Twin Island' concept is hardly new...