SW77 was all about adventure and excitement - about taking risks and accepting outlandish ideas such as The Force. With ESB we get the exact opposite philosophy as expounded by Yoda.
I wouldn’t say they’re opposite philosophies at all, just different layers.
I wouldn’t necessarily say SW is all about adventure and excitement. It’s about breaking out of the comfort of the status quo, about believing in yourself and in causes greater than yourself. It’s a coming of age story, about leaving the safety of home. Taking risks? Sure.
But is TESB anti-risk? It’s anti-recklessness sure, but I’d argue learning to put recklessness in check is a necessary component of risk-taking. The spirit of the first film is still there - “do or do not.” Yoda says a Jedi craves not adventure and excitement, which just means he does not seek it out for the sake of it. Adventure and excitement will come, sure, but patience is important, as is doing the right thing, which is what a Jedi should be craving most of all. TESB is a coming of age story as well, but it’s more about learning responsibility once you’re on your own and making your own choices.