Well it did a simulated landing in the sea. (And then exploded)

We know that was the plan all along and that it landed on target because there was a camera buoy sitting in the ocean waiting to record the landing. Which it did.

Yeah they blew an engine, but that's kinda what redundancy is all about.

Do you know how many times the Saturn V had to make early shutdowns on one of its engines? It's easier to say how many times it didn't have early shutdowns: 0. On every single launch they had to shut off at least 1 engine early as the combustion became unstable; this is just part of the game.