Escrow keeps the money from the buyers and keeps the items from the sellers, check the items as claimed! Then send the items to the buyers and wait for the confirmation from buyers then send the money to sellers! Then this escrow is perfectly done!
Oh I see , so the Escrow gets the items too , I thought he only gets the bitcoins however it still dosen't make sense , imagine that escrow sent the item to the buyer and as you said "wait for the confirmation from the buyers" , what if the buyer never receive the items for one reason or another like idk .. package got stolen or something like that . who would be responsible buyer still can claim that he didn't receive anything . (It may true , it may be wrong)
Packages are sent all over the world and it very rarely happens that they get lost and which is why if the items are precious, the courier companies ask you to pay for insurance, so if something happens to the package while on it's way, the insurance will cover the item's price. But if the courier companies inform to the sender (escrow) that the product was delivered in right condition, and the buyer claims to have not received the product in good condition, or that the he didn't received the right product then it's a dispute and escrow will make a decision after doing the investigation.
But I understand your concern it could turn nasty if something like this were to happen, which is why I think some of the escrows don't deal with physical products.