Over years of opposition research, I learned that whispers and rumors about the opposition were often hard to either prove or disprove — especially the most enticing ones. Unless you paid close attention to standards of evidence and proof, you could be led down endless rabbit trails. This may be what happened to True The Vote — or they may have reached the limits of time and resources, with the evidence remaining hidden because of the skill and preparation of their adversaries.
Geospatial mobile device information only counts when the fibbies are going after The Tater's political enemies, and outfits like Perkins Coie and its political fixer Marc Elias are just WAITING for names to come out so the lawfare attacks can begin.