Trade assurance vs bank transfer on Alibaba

Hi can anyone summerise the benefits of paying suppliers through the Alibaba link as opposed to T/T bank transfer? Is it just trade assurance, which seems to have a less importance if you have a good relationship with your suppliers. Thanks!

trade assurance guarantees your payment against the order with alibaba as the intermediary. It means the supplier can’t walk away with your funds and not deliver your stock. But if you have been working with a supplier, once you trust them enough, you could continue to do it by direct t/t transfer