Booking.com rescinding "signed offers" for applicants from embargoed countries

Some of my friends even got their visa, have liquidated all of their assets and have resigned from their current position! Such a shame to rescind suddenly long after signing the offer.

The funny thing is that I got recruited at FAANG with my original citizenship without any problem! FAANGs are much more strict when it comes to these issues. I don't understand this thing with Booking, which is not even a US-based company, at all.