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Accepted: 4 December 2019/Published online: 24 December 2019© Springer Science+ Business Media, LLC, part of Springer Nature 2019 authors never specify the number of demolitions analyzed. We are confident they only analyzed 6638 demolitions, which falls significantly short of the “over 10,000 buildings” threshold they claim (see Table 1). Finally, the failure to account for 5938 pre-Q2 2014 demolitions means that many of the block groups designated as “pre-treatment”(less than 6 demolitions) are miscategorized. This, again, calls into question the validity of their results because if pre-Q2 2014 demolitions were accounted for, they would have found that an additional 191 block groups received at least 6 demolitions by the end of Q3 2015. When those omitted demolitions are considered, the number of treated block groups increases from 343 to 534. This likely has implications for their findings, particularly …