> without deploying speed brakes and thrust reverser.

I don't think they were able to, since their aircraft never really touched down firmly enough to satisfy the weight-on-wheels interlock system. The aircraft won't allow the crew to reverse thrust until it settles into a "ground state" which we have today because some past guys managed to crash airplanes that way. Also, these guys commanded go-around power when they should have been hitting the brakes, so there's no way the flight systems were going to open the reverser.