These gloves don't cause neuromuscular incapacitation the way that a taser does. In fact, they only work when applied directly to bare skin. These aren't made for apprehending anyone. These have one and only one use: causing extreme pain to already-restrained captives. In plain language: torture.
Zero surprise that these are explicitly designed to cause pain without leaving a mark, not to incapacitate. Yes, we're spending $20M to buy ICE agents torture devices.