Unlike some others, I don't think this is an idea taken out of thin air. In fact, there has been news related to Paypal, crypto, and Blockchain in May 2019. However, I don't think they suggest that PayPal will adopt Bitcoin or something like that. As you can see from this article, PayPal is too afraid of volatility and is not willing to risk the kind of stability they currently have. At the same time, it seems like while they don't trust Bitcoin, they see the potential of cryptocurrencies, as well as realize the benefits PayPal could have from adopting Blockchain: https://www.ccn.com/paypal-skips-bitcoin-while-clearly-working-on-blockchain-and-cryptocurrency/. It's just that they are waiting to see whatever wins of this young market. and then they are willing to work with that.