No, it's the opposite. If Kerala actually cared about sustainable development then it would have built dense walkable metropolises and connected them with an HSR line instead of a coastal highway in the most car brained state in India with an environmentally destructive suburban sprawl.
Kerala is a thick rainforest. You can wreck large swathes of land with a sprawl and still swindle non-Malayali normies into believing that we are doing a favor to our biosensitive flora.
This is what sustainable development actually looks like