Kind of an incomplete article as there is no mention of the environmental cost. Desalination is not a magic solution. Everything is a trade off. Desalination means pumping salt back into the ocean which just compounds the problem.
-Chris
(You could argue about a miniscule temporary rise in salt levels, but that's more than counteracted by drained reservoirs and melted glaciers, which means the plants are actually minusculely helping the environment be closer to where it was historically.)