We had a long discussion with carriers about wind given by ATC, when it comes to velocity, so far it sits with:
We will provide the latest wind direction and velocity, icluding variations to velocity of 10 kt or more.
We will update the information of wind, if the velocity changes by 10 kt or more.
So with a wind of 230/19 kt, and a maximum of 28 kt, the maximum will not be given. Changes to the wind will be given when it gets up to 230/29 kt.... which effectively mean, you may get the 230/19kt, and may end up landing with 230/28-37kt without any updates.
The reasoning from carriers was, that this span is included in the calculated limitations of the aircraft.