I think it is great to require buyers to contact sellers first before filing a claim, but what happens when the buyer fails to respond to the seller's efforts to communicate through eBay messages? I've had that happen twice.
As a seller, I need eBay but they keep pushing us further and further away not embracing us.
I know there are good sellers/buyers and bad ones, but you have records of the good ones, why not put some contigency plans in place FAIRLY for the good seller? eBay and PayPal for that matter bend over backwards to protect any buyer, good or bad, but as of yet, in spite of all the hoop-la, I've never seen any REAL seller protection.
My experience with bad buyers and eBay/PayPal has given me this policy: " No one is watching my back, so I'd better take care of myself. The only seller protection I have is what I do for myself".