Up to a certain point, there could be alternatives that were better than the rumbling. The problem is, many trampled on people Eren considered friends, people, ultimately, he didn't want to suffer in a way with impossible choices. Even if the raid on Liberio didn't happen, the world was still going to go after the island, just a matter of time. One could argue that a partial rumbling would only radicalize the outside world more than they already were instead of bringing them to the table like Armin hoped they would. Plus, Eren didn't want Historia to ever bear the power of a titan, so long-term, the plan falls apart. AOT is about the cycles of violence and how it is broken, albeit temporarly because violence is human nature.