Yes but the water use of dairy, if handled properly, can safely be put back into the water cycle. It's my understanding that AI's water use contaminates the water in such a way that it's unusable afterwards. The article provided also has a bias, every study does nowadays but I'd be curious to see a projected rate of water usage if AI data centers were as commonplace as dairy farms.
This isn't to say I approve of the current dairy farming framework of course.