The comment about super-effective Earthquake is probably from before the super-effective change. Earthquake probably wins out now if it has a type advantage. But if you are looking for a ground attacker, Rhydon is still a stronger choice.
Not sure where the rest of your ire is coming from. As a neutral attacker, Rock Throw/Stone Edge is Golem's best moveset. But Golem is not a very god neutral attacker anyway.