The specific quote given, however, is not from your link but from
Pathways to Inequality: Between-District Segregation and Racial Disparities in School District Expenditures[0].
>From this table, we can see that on average, both Black and Latinx total per pupil expenditures exceed White total per pupil expenditures by $229.53 and $126.15, respectively.
That being the case it is possible that GP simply means to bring that one fact, that is, that minorities have more funding yet still do not achieve the same academic results (aside from asians), rather than as an endorsement of the rest of the article. In any event it is a point worth considering regardless of GP's intention.
[0]https://journals.sagepub.com/doi/full/10.1177/23328584198724...