If hamburger restaurants are more likely to close than sandwich restaurants, that's interesting and useful information. If restaurants owned by asian/black/brown/white are more likely to close than the average that is useful information as well, and can tell us about different people's access to capital. Including data on race provides more information on which businesses are closing. If race is a statistically significant variable in which businesses are closing, why willfully ignore that variable?
If you read the article you'd see that it was a survey of only black and Latino business owners with no stats on businesses that actually closed down and no comparisons to other ethnicities (white, south and east Asian, etc...).
