Without escrow the buyer bears the full advance-performance risk. Escrow handling protects both sides.
If the buyer pays the purchase price directly to the seller, they perform in advance without the unencumbered acquisition of ownership being secured. If registration fails or charges remain, the capital invested is at risk. Conversely, the seller may hand over the property without having the purchase price secured.
Attorney or notary escrow resolves this tension: the purchase price sits secured with the escrow agent and is only paid out against fulfilment of the agreed conditions. Have the handling structured early.