The headline is “Employers Used Facebook to Keep Women and Older Workers From Seeing Job Ads. The Federal Government Thinks That’s Illegal.“ On HN, that’s truncates to the first sentence, but “used” is in the past tense. The information you claim lost was just compressed into the grammar.
In contrast, one of the contemporaneous headlines was “Facebook Is Letting Job Advertisers Target Only Men” [1], i.e. in the present tense.
I guess GP is essentially (fairly) complaining that "used" can mean both "a week ago" and "two years ago", and this being headline of news strongly implies the former over the latter. Try to mentally prepend "Two years ago," to the existing headline, and notice how much less outrageous it reads.
In contrast, one of the contemporaneous headlines was “Facebook Is Letting Job Advertisers Target Only Men” [1], i.e. in the present tense.
[1] https://www.propublica.org/article/facebook-is-letting-job-a...