This is the basis of the virtual kidnapping scam/grandparent scam, or panic manipulation more generally. The manufactured urgency keeps them from doubting: the voice on the phone being off is just fear, or a bad connection, for example.
I have personally intervened in one of those when I heard someone reading off a 6 digit number.
Exactly, to perform the scam it works best if you get people to switch to their animal brain. "The snake is going to bite right now so I have to so something!".
That said, hog butchering scams have gotten popular so manufactured urgency isn't the only way.
I have personally intervened in one of those when I heard someone reading off a 6 digit number.