AMDEC - I agree with what you say, the ability to cope with at least 17 kts at various test points must be demonstrated.
But what happens in dynamic manoeuvres or when the wind is gusting in excess of 17 kts? That is where a poorly designed TR causes problems..
You said yourself you have little pedal margin when it comes to critical azimuth. Which operator is going to limit themselves to 17 Kts cross or downwind?