When, from either side, zero evidence is provided: The burden of evidence falls to the side which can cause the most potential damage to you/society, such that

When, from either side, zero evidence is provided: The burden of evidence falls to the side which can cause the most potential damage to you/society, such that it can be mitigated/fixed. In this case believing a news article over Uber is in our best interest. As a result your the parent poster is justified in requesting Uber for evidence.