I am not sure if we need something like bitcoin card currently. Everything seems easy and secure.
Cards will make it unsafe.
First needed in order to have the possibility to buy things out of internet. There are to many things that needed to be bought out of internet or are to many the people which don't feel secure when use their credit cards at internet. For such kind of things needed the bitcoin card. And then why can be unsafe? If the service is build as it is needed from the card provider the bitcoin card can be very safe. My actual credit cards allow me to assign the limit which can be used in internet. If I want to use it in internet change before the limit (increase it in the amount i want or I need), use it and then make the limit again zero. Even if someone has all my data of my credit card can't do nothing with those. Then if my credit card is stolen (and even if the thief can know my pin) I can block my card within minutes by calling the call center of my bank. If the bitcoin card can offer such services I don't see any risk in this kind of cards.
Bitcoin is built for the purpose of it being trustless and you won't have to trust the third party.
Currently, Bitcoin debit cards require users to deposit the amount into the service before being able to use it. Be it a card that uses Bitcoin as a payment method or converts to fiat, trust needs to be placed onto the provider. With all the hacking incidents, it is hard to think that anyone can trust an online service.
There is no any other third party in the case of
bitcoin CREDIT card. I am not talking about bitcoin debit card (which even those exist, so are a fact, independently what must or can tell you and me about the trust). The
bitcoin credit card (must do) work very differently compared to
bitcoin debit card. See my previous post to see how work the bitcoin credit card, in which are used the bitcoins and you will see that the only person which have command on the bitcoin used by this credit card is only the owner of the credit card (and the bitcoins). No one other. No any kind of third party.
But even without the above explanation the fact about the existence of bitcoin debit card mean that your word about the trust and the other things are only word. The reality is another. And the reality is over all the parties. You will have reason only the day when in the market there will be no more bitcoin debit card. Until that day, repeat that your's are only words.