Bitcoin has high fees if you’re moving Bitcoin between wallets within the blockchain. You don’t pay fees if you’re moving Bitcoin between wallets within the exchange, because those transactions aren’t registered to the blockchain. It’s essentially just registered into the exchanges internal spreadsheets.
I guess the purpose of this PayPal coin is the same as Tether: to circumvent some of the regulations that comes when trading cryptocurrencies with real USD.
They will probably require some KYC verification process before you can buy the coin, so PayPal will know exactly who you are. It’s up to PayPal to reveal your registered name or not.
I also doubt they will allow to send the coin to people outside US. They explicitly state in the page that it’s for US customers only.