The fact that the firmware is crap and doesn't provide those numbers doesn't mean the controller isn't getting those signals. I've investigated the exact parts that go in a bottom bracket torque sensor and they output both. The firmware is at a huge disadvantage because it doesn't know what gear you're in, so it has to estimate that from speed.Someone should show me the Rider's Power and Cadence readouts from their hub-drive motor e-bike.
One possible reason that it doesn't output any real-units numbers is that they don't bother to calibrate the torque sensor, so they know "more" and "less" but not actual NM
From the specs on one:
This sensor has an 36 pole single wire cadence sensor and a 1.5V – 3.5V output voltage that is proportional to crank torque with a scaling of 70 Nm/V. Includes 90cm long cable terminated with JST-SM connector, plug-and-play with V3 Cycle Analyst