If the hack of LastPass happened yesterday, sure, but it happened months ago. There are a variety of different attacks that could be executed in that time, and the sooner the attacks are executed, the better — because less time for credentials to be rotated.
I find it implausible that the first hint of vault compromise comes 4 months after the hack and is against a low value cryptocurrency wallet. Especially considering that when LastPass first had issues, there were dozens of people reporting personal experiences of it here on HN — if LastPass vaults are compromised, the internet would be flooded with reports.
