This is just another play to give out more Azure credits to anyone that can feasibly consume them. Azure credits show up as unearned revenue on their SEC filings where they state that they "expect to recognize approximately 45% of this revenue over the next 12 months and the remainder thereafter".

It's wild that you can give out gift cards that make your company's value go up so much more than the gift cards could ever cost you. It's almost like one of those financial schemes that end badly.