Next Gen ATP Finals and the slice backhand

Plenty of evidence at this event that the slice backhand remains an integral part of a player's armoury.  Great antidote against the power forehand (keeps ball low forcing opponent to get the ball 'up and down' with reply thus taking away ball speed), an excellent 'change up' to break opponent's timing and rhythm (stroke as well as footwork) and in doing so challenging them to generate their own pace and of course a great defensive option.

Coaches, do we actively develop this stroke in our younger players or do they only develop it out of defensive necessity?