Would you consider someone a 10x engineer if they can crank out a super-fancy backend service in 1 weekend that nobody wants to pay for or actually use? In a c

Would you consider someone a 10x engineer if they can crank out a super-fancy backend service in 1 weekend that nobody wants to pay for or actually use? In a competitive situation a person might be 10% better but win 10x as often as the next best person. This is often taken to mean they are 10x better however.