I know nothing about any of these except harry potter, but i just wanna say that i think that there is no such thing as “too high expectations” for kids shows. If anything, expectations should be way higher than for adult shows because adults already have a more formed understanding of the world while children are much easier to influence by media like this. If you teach kids early that problems are only ever solved by individual people with power, that is very damaging to their long-term development.