lol...you are trying to hard. Thats what everyone has been asking for from series like MH and Pokemon.
SwSh was always going to sell, but the fact that leaks mentioned "armor" way back before means they were planning on something along these lines either for the main game or before we got the game, and the other cut/shorthand features still make SwSh one of the most woefully under developed titles in the franchise.
They also said each expansion contains different content based on the version you have. So if you want to see it all and get all the Pokemon, you need both.
You can get all the pokémon trading. It's the same for Sword and Shield and pretty much any pokémon.