Actually the book as 31 pages. 32 including cover. There are 2 pages on each page when you download it. Check the numbers on the pages. You’ll see what I mean.
Bjergmose has all the correct answers. If a carrier is sunk in that way, the planes can land on any friendly island, land or other carrier in the same sea zone. If not they are lost. 8-)
I agree with your rational, but I do feel that Paratroopers belong in the game. I don’t know the solution though. Perhaps they could only be used in attacks where at least 1 other unit is also attacking the same territory by land or by sea. (I would make an exception for islands and perhaps undefended territories.)