IMHO, that's not really 'pig butchering', that's another category; FTC calls it 'family emergency scamming'.
To me, pig butchering is a long term process where the victim is convinced that a new contact is a trusted friend, and then the trusted friend needs money for (transportation, investment, living arrangements, etc). The symbolism being that the victim is a pig that is fattened up via building up a relationship, and then butchered via the demand for money.
> I've been arrested/kidnapped/lost my wallet
the scammers create a flase sense of urgency and exploit the victim's concern for their loved one's well-being.