The person using Paypal to send money, is always perfectly secured against scammers due to the ability to chargeback and can scam at will too.
Your insistence upon escrow would make a difference in any BTC only transaction, but not here.
The person sending PayPal is NOT always safe. If I send a payment while at home or work without using a VPN, proxy or TOR and send as friends and family using my PayPal balance (not credit, debit, bank and etc), there will be a slim chance of me getting my money back. I wouldn't be able to chargeback outside of PayPal because I've used my balance. Won't be able to claim unauthorized because they would notice the IP address. Doing so would also put my PayPal account at risk and there is a very good chance my funds would be frozen.
No matter how you put it, at the end of the day escrow still protects the buyer of BTC (person sending paypal) only. Sending first or receiving PayPal first does NOT prevent a chargeback.Why should these PayPal scammers or any other scammer get free money? Most have no interest in BTC and are only here on a bitcoin forum to scam paypal funds while cluttering up the currency exchange section. Fuck em all
OP seemed pretty desperate for the bitcoins, so yeah if I was a scammer I would have reversed the funds, but to let many of the pessimist down, I am not one. on the other hand I do not like scammers.