There is a theory/practise out there that some lift the gate before landing.
Some have managed to jam the gate by applying pressure backwards at the same time as trying to lift them. This occurred mostly when they fitted the lock out solenoid linked to the squat switch to prevent beta in the air on the Jetstream.
The solution is just to release the pressure and try again.
But some so they can ram the levers into reverse as soon as the mains touch lift it with the power levers forward of flight idle.
I am struggling to see how the delta P system can have any effect on the NTS system.
The torque is sensed by either a strain gauge bridge on a metal ring or a hydraulic pressure sensor with a piston linked to the ring. Once it goes negative the NTS opens a valve which dumps the oil pressure out of the beta tube which then allows the spring to push the blades towards feather. Which I have always been told it is not strong enough to do against the aerodynamic forces with the aircraft in flight from the beta power regime.
If you are flying your ball its exactly the same as a single engine failure during go-around.