Very nice coverage. Thanks for doing this!
I think a lot of btc users dont understand the difference between a prepaid and a real debit card. All the other bitcoin debit cards I've seen require you to sell bitcoins to load the card and usually take 2-4% fee for doing this and have daily limits and delays to load the card with fiat. In my opinoin I do not consider this a debit card, instead it's a prepaid card.
The Xapo card is the only one I've seen that doesnt need you to preload and spends directly.