What relevance does where they were found have
Surely more relevant is where the controls were at the start of the takeoff roll ... a very different question to the one you ask, and something that will take some serious accident investigation and analysis to determine
NoD:
If the flap/slat controls are found in some position which corresponds to the actual position of the flaps/slats after the accident then we know there was not a system failure and
we can stop speculating on that. If the flap/slat controls are found in an inappropriate position for the takeoff conditions, then we can ascribe the failure to the crew. Either they did not properly configure the aircraft for takeoff or changed that configuration on the roll. Control positioning will allow a determination of system or crew failure.