Complex sentence: Because of such stories, having to navigate between the two hazards eventually became proverbial for being on the horns of a dilemma and is the equivalent of the English phrase, "Between a rock and a hard place".
Split into simpler sentences: Because of such stories, having to navigate between the two hazards eventually entered idiomatic use, with the same meaning as being on the horns of a dilemma. It is also the equivalent of the English phrase, "Between a rock and a hard place".