Establishment that the employer's nondiscriminatory justification was in fact pretextual does not establish causation, which must be proved separately.
Sufficient evidence for court's inferences.
Dissent: From totality of record, retaliation was plain.
http://media.ca1.uscourts.gov/pdf.opinions/17-2200P-01A.pdf
Since 2011. An occasional commonplacing of the U.S. Circuit Courts of Appeal.
Neither an authoritative statement of the law nor legal advice. Quick work.