Focus is focus, and there's plenty to go around re: procedural whip.
It takes two, and to say that only one side is motivated is not accurate.
Boeing has a more direct, and quantifiable, goal.
The regulator, not so much, it is more reliant on "Protected Duty", and succumbs more easily to pressure, since push back is easily "managed".
Profit trumps Public Duty when it comes to "Mission".
Why doesn't Boeing test the 787 for flame toxics?