In light of Jeff Dean's email, which you can find in the updated original post, it appears that Timnit Gebru threw a public tantrum when one of the many papers

In light of Jeff Dean's email, which you can find in the updated original post, it appears that Timnit Gebru threw a public tantrum when one of the many papers she collaborated on was deemed unsuitable for Google Brain technical standards. That's the point: adults handle minor setbacks like adults, instead of rushing to social media to vent in public about their 'constant dehumanization'.