I´m curious.....
Has Boeing fixed the non auto retraction of spoilers upon thrust levers advancement on the 757??? And have they fixed the non retardation of the thrust levers/thrust upon inflight deployment of thrust reverser on the 767???(AA 757 in Colombia and Lauda Air 767)
i'm not sure what your point is.
The GROUND SPOILERS on the 757 will retract if the thrust levers are advanced after landing (i.e a baulked landing / go-around situation).
The flight spoilers will not retract in flight if the thrust levers are opened, adn nor should they - why would you want that - there are situations where you want thrust and spoilers (burning fuel off in a hold to get down to max landing weight being just one of many)