The original article [0] notes other potential disqualifying conditions include ever having received welfare in their own country, cancer, and advanced age. The stated purpose is to prevent the visitor from being a "public charge", where the visitor becomes dependent on the US government for subsistence, long-term institutionalization, etc.

Public charge grounds for exclusion are not new, but the precise criteria used have changed in varying Presidential administrations.

[0] https://www.foxnews.com/politics/trump-state-department-orde...