Surely cold storage is compatible with segregated accounts using payment channels or one of the other novel Bitcoin mechanisms. But if not, and cold-storage had

Surely cold storage is compatible with segregated accounts using payment channels or one of the other novel Bitcoin mechanisms. But if not, and cold-storage had to be abandoned, then that would have been a good signal to walk away. And if accounts had to be segregated then losses should have been segregated too, not socialised.