Blink publishing the trail is the honest half. Where the tracing stops is the limit. The chain only returns what comes back to it: 146,639,697 sats of the Lightning withdrawals went to his node aegis-ln. Much of that node's capacity was inbound liquidity opened by LNBiG, so channel size says little about his own money. About 4.84 BTC sits unspent since 28 September at an address Blink marks only as probable. Cross-chain swap legs are the thin part: a swap is a counterparty that can cooperate and is not obliged to. Freezing is a race, and it is won by whoever moves first.