The water concerns are absolutely overblown, the paper that everyone draws their numbers from had to be ammended because they had a 1000x water usage error.
When a poor town has an empty lot get converted to a data center, they are getting some jobs. 20 jobs of remote hands, plumbers, and security guards is better than zero. And there is increased tax revenue (this point I disagree with, because property tax is wrong and we need a land value tax).
Long term these changes are good.