You weren't penalised, which is a good outcome for you. It's terrific that you were on the ball with contacting both eBay and PayPal.
But I agree - poor outcome in terms of the buyer succeeding in getting a refund.
It's always interesting when a seller follows members.
To follow a member, go to the member's profile (https://www.ebay.com.au/usr/membername, where "membername" represents the member's name),
Membername (xx 
) Based in [country], membername has been an eBay member since [date].9x.x% positive Feedback
♡ Save
Click onto "Save", and the heart will be filled.
Membername (xx ) Based in [country], membername has been an eBay member since [date].9x.x% positive Feedback
♥ Save
Other members can see who a member is following. That can be useful.
