It is reasonably clear that Boeing recommended go around procedure after touch down was not followed where pilot needs to apply TOGA manually and initiate climb without FDs. why wasn't it done? Man, machine, environment. It could be one time error, inadequate training of this particular situation or lack of required knowledge of automation. Machine, GA mode could be improved. Environment? high temperature, moderate wind shear, demanding but not so hostile.We have to wait for full report.