> I just don't get why these companies should be in the business of offering gift cards
I think gift card or not isn't really relevant, fraudulent activity can happen in a lot of ways like iCloud being paid by a stolen credit card, or TV shows being rented with hacked PayPal account.
The real issue is simply that there's no proper support avenue for serious issues that at this point affect your whole life, a family or a whole company. There's also no real avenue for a user to get the authorities to do anything to help with their case.