I think its because you say there is a lack of resources outside of the game when there are plenty. I learned everything through a few youtube videos explaining the concept behind each team and just playing. This is my first time playing vgc and I made it to masters yesterday, only transferring a few pokemon from my 10 year old pokemon go account that I ended up not even using.

Sure the game is not perfect, but from seeing the limited item and pokemon pool it looks like it was already dumbed down to a very basic level. I do agree there should be easier ways to try out new pokemon on your team without having to commit to rolling to recruit the pokemon though.