Eh, that’s not how it’s written I believe? Not that it really applies here, but you can (and have to) discriminate against a protected class if it is a core part of the job requirement that excludes them and there is no reasonable workaround. For instance, if there are no accessible robotic exoskeletons around, discriminating against someone unable to lift 50 lbs because of a physical disability if the job requires someone to lift 50 lbs all day is perfectly legal. If you’re hiring someone to act as a 20 year old, you can discriminate against people because of their inability to look 20 all day long, etc.

The problem is such as this case where the company seems to think that people aged the same die at the same time? Which doesn’t seem to have any plausible basis in fact or a reasonable job requirement.