The speed you saw "with the wind" was ground speed and illusionary and not "felt" by the structure. What hurts a plane is excess airspeed and excessive loads that can be imposed at those speeds. You can fly a trainer in 100 mph winds with no increased loads on the plane other than the obvious fact that it will be very hard to fly back into the wind and land. A plane does not "feel" wind speed, it feels the speed at which it penetrates the air mass.