This is a definite improvement over no escrow. It’s just a shame there’s nothing that can be done to mitigate malicious intent by offering to sell something, only to ‘burn’ the payment and never send the goods (assuming they even existed).
This would just be a case of spite but a very real threat none the less.
E.g.
A offers to sell laptop B offers to buy and escrows 2000 bitcoins A confirms that item is sent but never sends it B never receives it so never release the bitcoins A doesn’t care because their intent was to make B ‘spend’ their bitcoins with no recompense