The thing about the frog encounter is that it is literally the most telegraphed encounter in the entire game. Even the most new of new player to gaming in general would think, "huh, this is clearly building up to something big. So, yeah you probably are not prepared for that when you get there, but on my first shot at it I saw all the stuff in the way and was like... "You know what? Maybe I'll come back later." and I didn't end up actually doing that encounter at all until my third character. (I restarted shortly after to explore other builds so I never got back to it on that character)