Framer, rather than guess check the airlines time table. Flight 863 departs DXB at 0730 (dxb) and arrives DMM at 07.55 local, departs 0840 local arriving DXB at 1110. Even if he did a double shuttle flight 865 departs DXB at 1410 and is back into DXB at 1725. So yes, I still believe that the roster shown may be in error in this case.
Its great to know you would not bust FTLs (you legend). There is nothing saying this FO did either. Unless you have facts stop trying to degrade him.