You've missed the point.
The point is that the foundation of the basic income concept is that the income redistribution scheme works flawlessly and according to the people's expectations. This assumption is patently false, as the system is established and managed by people, particularly elected officials and the regime's apparatchiks, who have a long and plentiful resume of manipulating, distorting and corrupting the state to fit their own personal agendas.
I can tell you exactly what happened in my country's income redistribution scheme. It is supposed to be entirely independent of the state and self-managed. Yet' somehow the ruling regime managed to manipulate the system to finance golden parachutes to the nation's career politicians (golden pensions paid off to people who never contributed to the scheme) as well as forcing it as a cash cow to the state as a exceedingly cheap source of state loans.
And it is supposed to be a simple system where worker contributes 1/3 of their salary to finance pensions and unemployment benefits.
That's what these organizations made by people are used for, in reality, and reality always trumps fiction.