Air pump more efficient than ground pump, noise disturbance?

Don’t the so-called trench collectors have a significant disadvantage? Could it possibly be that they extract heat from the ground and one somehow ends up in Death Valley, because not even the grass grows properly anymore?

A trench collector is also not a miracle". In fact, mistakes are or still are being made today in the source dimensioning. If the ground is overloaded by a source designed too "tightly", this leads to excessively "cold feet" in the vegetation. Comparable effort, which must be made for the evaluation of climate and characteristic curve data in air heat pumps, is required for source dimensioning in brine heat pumps.

Regards