Boeing has invested a lot into the storyline that the two crashes were entirely the fault of inexperienced and poorly trained pilots, so India's response is logical. Boeing can't have it both ways. Either the plane as designed can be safely flown by the (relatively) low hour pilots hired by the low cost airlines that they sell it to, and the crash was the result of a technical defect -- or the plane was technically fine and the pilots who were trained to international standards were deficient. If the latter, then the standards for flying the plane have to be changed, lest we watch more of them hit the ground unexpectedly.