The researchers say that while the study cannot establish causation, the patterns suggest that supporting low-income students during their transition from college to the labor market may be a fruitful area for policy intervention.
They figured out giving poor college students money when they graduate may be "fruitful"?
Did anyone consider the majors/degrees the poor students and the other (non-poor?) students graduated with? Of course not, why would that matter? The point of this study was to affirm the obvious - people that need money to afford college could probably benefit from continuing to get money after college.
It is very hard for me to imagine a scenario where it would be harmful to give anyone any money at any time for any purpose, maybe we could stop funding these types of studies to keep discovering this obvious truth?