This solution is also a major source of chargeback fraud, FWIW. The people who get screwed from that aren't financial institutions, it's merchants - often small mom and pop shops that lack the resources of predatory multinational corporations to challenge this type of activity.
From their perspective, protection from chargebacks is protection from fraud.
Well, show me these mom and pop shops (that aren't dark web drug dealers or porn sellers) that won't accept credit cards and will only accept crypto payments. Despite the chargeback fraud (an entirely different problem than what this thread was discussing, by the way) basically nobody has abandoned credit cards and gone crypto-only.
Which is what happened here. I imagine traditionally one bank asks the other bank to reverse the transaction. Here one exchange asks the other exchange to reverse the transaction.
From their perspective, protection from chargebacks is protection from fraud.