It might have been that they didn't need to cram as many airframes aboard each hull because of having more hulls. Right around that time, they were specifying each flattop by airframe type: hence why the aircraft carried by the Taffys were carrying CAS-oriented birds and HE explosives and Big E was carrying night fighters, etc. With more flattops, they don't need the capacity over just straight up having less chance of getting blown up from those Kamikazes.
According to Navypedia, it was 27 F6Fs, 24 SBDs and 18 TBFs on 1/4/1944 (which,
my bad, was before it had the flight deck extension). You could well be right that they just had so many CVs they didn't cram them in, and not having them on the deck (as you say) made things a bit safer if kamikaze's swung by.
All assets in this game are the same between countries, besides modifications which are also open to all. To fanboy for your specific country just opens a hornets nest of all countries wanting specific attention that would just spiral out of control.
1. Brits want better armor on their CVs, because unlike the wooden decks of USA CVs, their decks were made of steel.
2. Start of the war, USA torpedoes did not work. Like, they literally had a failure rate of, irrc, betwee 50-80%.
3. Japanese want advantages for their highly disciplined banzai charges.
4. And more more more until infinity.
I don't think anyone's 'fanboying' for their country (Australia didn't have an aircraft carrier until after WW2 - and even then it was just a hand-me-down CVL from the UK - being a CV fanboy for my country does me no good at all

) - it's more about are there ways we can mod the game to add depth and historical plausibility. It's not the craziest thing to discuss in the game, particularly as we already know that Japan will get an NF for its torpedoes, for example. Of course, if you're not interested, you shouldn't feel like you have to wade into the convo, but suggesting other people shouldn't suggest it would be unfairly shutting down conversations, imo.
Also, in terms of the conversation, a lot of it was about modding in a mechanic that would allow any country to do deck parking (but with the US ahead of things, as it was historically) - so it was hardly 'US has deck parking, and everyone else can live without' and more "how can we make this work as a mechanic for everyone, but with it unlocked earlier for the US".