Skornogr4phy
Are you sure about that?
It is definitely incorrect for a T/L position above MCT detent in the case of OEI. FMA "MAN THR" mode engages, and thrust can be controlled manually by T/L at any place between MCT and TOGA. Of course LVR THR flashes and A/THR disarms (blue).
However the case what you said is at Take off and when FLEX is used with MCT detent. So it may be different than what I know. But logically in that case as well, since the A/THR is still at ARMED phase (blue), thrust may be controlled somewhere between FLEX and TOGA.
regards