If this story realistically describes what happened, I would expect Apple HR can identify who wrote it (Muslim with a student OPT visa, specific request to do no previous work experience, reported issues with the export license, and a case like this)
If there were tens of similar cases, we would have heard of more.
Apple's culture of silence works well enough that employees are self-censoring. You do hear a few stories now and then, but often constrained to IS&T or from non-engineering orgs:
Someone has to speak out first and it has to get a ball rolling. Stuff like this can be hidden for decades before coming to light, if ever, see e.g. #metoo with prominent examples like Epstein and Spacey.
If there were tens of similar cases, we would have heard of more.