I'm with Bmatthews on this. The 'conventional" configured fighters of the US behave similarly, in that the control surfaces seem to be showing activity out of line with the maneuver conditions. This is bacause these planes are statically unstable. That means that when pitched up, the airplane tries to contiue pitching up. So, the Rafale canard shows "down" deflection during high alpha flight since the rest of the airplane is trying to continue pulling up. I have not observed the Rafale, but I have seen the same thing on F-16 and F-18 in high-alpha flight.

This type of thing could be emulated on a model by using gyro technology on the pitch channel, borrowed from the heli boys. Heading hold would be able to fight static instability. However, it would take some math or risky experimentation to figure out how to set the control power and gain on the gyro to not have a real bad time. Plus elevator control response would be significantly different, as it's only a gyro, not a full flight computer.