I would not draw that conclusion from this article - we don't have such fine-grained data from other planets, perhaps their axes are more wobbly than Earth's. E.g it was only in 2020 that we discovered Mars has a "Chandler wobble" similar to Earth's (which was discovered 150 years earlier). But Mars's wobble is quite different as a matter of geophysics, Earth's Chandler wobble is mostly sustained by ocean sloshing. There's a whole lot we don't know about the non-Earth planets.

I will add that human extraction of groundwater it not nearly as impactful as the formation of large igneous provinces and other ancient supervolcanoes. A tectonically active planet will definitely wobble unpredictably.

We also found that our dams have slowed earth’s rotation!