From: Olympia, WA
From sigint books i've read, that bit is actually accurate... Allied SigInt could time it to attack Japanese planes AS THEY WERE LANDING when they were transferring into a base... or failing that, they would attack just after planes flew in... sad to see that they've made it more gamelike for fairness sake.
I would assume, though, that this was with air assets already in theater. Witp does allow the allies to transfer in 4Es from halfway across the map and still launch a strike. Part of the generic transfer/strike problem. Would be nice if a transfer took over some number of hours for the planes to become unavailable for the AM strike phase, and if over some additional number unavailable for either phase.
This can fall under a "trust your opponent" deal... I always stand down any squadrons whose transfer would take more than approximately four hours at cruise speed. I've been doing this since I first recognized this problem in playing the AI, and religiously follow this rule. I do not know if my opponent follows it, as it is not an agreed upon house rule, just a personal HR.