Too bad for the Structure and its Spirit, the voice who was Treena, Spirit of Earth its self WAS Earth. This meant she had a certain control over Earth as it was physically her 'form.' While she didn't interfere with takeovers and people owned what they owned. You didn't attack the Planet, or there would be the planet its self to face. A large structure of another invading Spirit that had just dug its self into her? Yeaaaaah that was a foreign object and not something to ignore.
The structure met its match and the Spirit in it as well when the ground decided to swallow it whole. Stone grew up and consumed the structure, burying it but touching nothing around it, as not to disrupt the natural lives of people and their own structures. It then 'burped' out the Spirit which the wind flung into space along with the remaining of the golems. "Excuse me."