From the article: A Basic Income Guarantee would establish economic security as a universal right. It gives each of us the assurance that, no matter what happens, we won’t go hungry.
I don't see that it provides that guarantee at all. It doesn't mandate that the money be spent on food, housing, or anything sensible. One of the things that people in living in long-term (generational) poverty tend to do is to immediately spend any money they get on "escaping" the drudgery of their survival, e.g. on alcohol or drugs, flashy jewelry or clothing, gambling or other entertainment. It simply doesn't occur to them that money can be managed, invested, or saved. If you don't break this way of looking at life, then the money will be gone in a week or two (or less) and they'll struggle for the rest of the month until the next payday comes, and repeat the cycle again.
[Edit: Cite for my last paragraph: A Framework For Understanding Poverty, Ruby K. Payne]