I think they have missed something important: systematic plundering of very specific mineral resources from really old geologic provinces. As a specific example: modern era iron-ore mining focuses on the banded iron formations laid down as Earth's atmosphere was becoming oxygen-rich, 2 +/- 0.5 Gyr ago. Those formations cannot be regenerated by the planet (unless we humans succeed in deoxygenating the atmosphere, which the fossil fuel companies seem bent upon doing). There are big holes in the crust now where those formations have been mined out. I think those will be apparent to any successors of ours.
On a smaller scale because it dates to pre-industrial times, Europe has been more or less completely mined out of precious metal deposits (gold and silver). You can tell where they were because of the tracking of current sediments into much older geologic deposits, stuff left behind by the miners as they dug out the metals. That kind of selective pocket intrusion from above is hard to understand via natural processes. (Generating gold deposits is not well understood, but probably involves fractional crystallization out of magma intruding from below.)
Continental crust is not being generated now, except very slowly at the leading edges of continental plates. (Oceanic crust is being continuously recycled at impressive rates; I think all the oceanic crust is no older than 100 million years, as it is subducted under the continents.) So the small but highly selective scars we have left in the continental crust seem likely to last for as long Earth remains habitable, which is estimated to be about another billion years.