As awesome as it was to see a ship intentionally run aground, I can't imagine all that crap flowing back into the sea is environmentally friendly.
When a ship comes to the end of its working life, it has to be torn apart, piece-by-piece, to be disposed of. By that point, though, little care needs to be taken in getting it ashore–so they’re just intentionally run aground. This is what it looks like.