Right. Nobody makes a Pascal's wager-style argument in _favor_ of investing in AGI. People have sometimes made one against building AGI, on existential risk grounds. The OP author is about as confused on this as the water usage point... But the appetite for arguments against AI (which has legitimate motivations!) is so high that people are willing to drop any critical thinking.
That's not Pascal's Wager unless they're saying AGI has infinitesimal probability but infinite payoff, or something like that. If they think AGI is likely, they may be wrong but it's just technological optimism.
