It's a very good decision in my opinion and Paxful should follow them because It doesn't matter how careful you are, you could fall for these scams one way or another. I remember buying some cards from someone on Paxful, and he used to have +1000 positive reviews while only a couple negative and then, his cards were carded. I managed to do some digging to find out that he's involved in some carding forums.
It is understandable from some point. But if the carded card scam continues, it will make world better place by either a) people get smarter and do not accept gift cards, b)gift card sellers do not accept credit cards online or c) bump up the security to make purchases impossible for not only carders but all normal users as well, then switch to cryptocoins as a result.