The article is gated so I can’t see if they address this but when companies make such announcements isn’t differential laying off / firing due to race illegal?
One cited example is "last hired, first fired" layoffs - if your company has recently improved the diversity of its candidates resulting in a more diverse hiring pool, firing the newest hires would unwind that.
A company that wants to be racist might even deliberately choose the arguably-innocent policy which results in firings disproportionate to the makeup of the company. So this just seems to me like Twilio doing the opposite - ensuring that the firing criteria aren't a proxy for race