Two howerboard motor for each ODrive port

I want to connect two bldc howerboard motors for each port. Without encoder, just torque control.

Is this real and are there any consequences from such a connection?

You cannot drive two motors from one output, and a BLDC motor cannot produce torque without an encoder of some kind.
The ‘sensorless’ mode estimates the position of the motor based on its back-EMF, and that won’t work if there are two motors.