How is this system an advance ?
Setting aside the non connected sticks, unbackdriven autothrottles and hard limits for a minute..
Seriously, you would think a sidestick control system would / could be very responsive, instead the FBW filtering effectively seems to provide a sluggish, unpredictable response.
Full deflection in a Boeing is almost unthinkable, but more importantly, what you input is what you get, predictable and no second guessing, every time.