I'm aware that NAWPA post wasn't entire serious, but the thing is that similar to how people were investing in companies during the .com bubble that had no clear monotization plan, Water also went through a similar phase. Municipal water and irrigated water are very different topics I agree, but from the direction I work in we look at them in a similar light. There's another project our organization is involved in that is focusing on investments in dam infrastructure in Africa to help deliver water for farmland irrigation. The specific context is different, but water is water, and the issue with quantity and transportation is present (and common) on both sides.
Again, do what you want or believe what you want, but the reality of the situation is there.