I guess when you're dissipating upwards of a gigawatt of power at a single site boiling water starts to look attractive. It's a pretty impressive curveball; I definitely would never have predicted "an evil corporation boils off all the local drinking water" to be a legitimate concern. I'm pretty sure that's too absurd a plot point for even a children's movie.

I keep hearing people claiming that water is just as much as issue as energy for operating these DCs, but that just doesn't make any sense to me. However, I haven't had to step inside a DC for almost two decades.

Yeah because it's cheaper they go evaporative. That's an easy fix by just making it more expensive.

People talk about the water usage like it's an intrinsic feature of datacenters; it's not. You just make it more expensive so they are forced to conserve. But you wait till you have to so you don't push them to build elsewhere.