on moving or non-moving thrust levers: on the Boeing, the TLs are a means of bi-directional communication. If the pilot has on hand on the levers, he'll get direct tactile feedback of what the plane's current thrust setting is. That's an additional, very direct channel of communication besides the gauges or displays. AB has eliminated this direct feedback channel. So the pilot has to obtain thrust information through other sensory input
there is indeed some major human / machine interface problem here. I am really wondering what advantage the designer found in decoupling TL from actual engine thrust... ?