Im interested to get the job get done i had neither thinked to chargeback. But yeah you are right is not a problem to use an escrow for the coins
Let's say that you are honest but it's just a safety precaution because it's much better to be safe with the transaction that you have. There were incidents before that it actually happened and it's very frustrating to the side of the receiver because after all the hard work he has done to the company/employer, he'll be chargeback. So, that's a very hassle thing on their end. I'm just explaining the side of the possible thing to happen for using PayPal that's why having an escrow is way better.