There's such thing as poverty trap. You need money to survive so you get a low paying job, you can't afford to quit it so you keep at it, 10 years pass and you're still there. UBI was supposed to short-circuit this. But at least in that particular study we didn't see a lot of it happening - even though 1-2 years should be enough time to change things.

Because current unemployment support works on the idea that people must be scared by poverty into getting a new job, and so being unemployed is ultimately a state society tries to punish you out off.

If simply giving people money left them more successful at getting a new job, there would really not be any point in all the CV theatre a jobseeker routinely needs to perform.