Woa there! Before you call for discussion over and done with.......who are we talking about ('Boeing 737 Chief Tech Pilot')- the Boeing man or your airline B737 Chief Pilot? I note use of the word 'recommendation' as opposed to 'instruction'. How are we to handle the many airlines and simulator trainers who recommend leaving it in? It is not so cut and dried. I have noticed occasionally the thrust levers come alive in the flare as the A/T re-engages itself. It should not be a problem- a large meaty fist should be covering both and selecting idle reverse. In fact no problem at all. And, should you suddenly have to do a go-around- one simple press of the TOGA switches and you're away, with automatic thrust selection and FD instruction. On manual A/T approaches, I've found one person is poncing around trying to select thrust instead of monitoring and selecting flap and gear close to the ground.