Note that the material you quote from Wikipedia is in error; the simple-to-meet “reasonably related” standard only applies for disparate impact cases where the discriminatory effect is based on age over 40, which is not under Title VII; the Title VII test is a much higher bar and once the disparate effect is shown requires showing “business necessity”, and even then disparate impact discrimination can be found if the employer declined to adopt available alternatives with less discriminatory effect.

> I think it's pretty trivial for any company to argue that technical interviews are relevant to a developer job.

Is it? Can you show, right now, that your companies technical interviews and job performance correlate positively? Cause from the things I've seen that's not checked commonly in companies and even if it is you don't hear "the technical interview is bullshit, let's do something else" as a result.