This idea is silly
forcing people to go out if one of them doesn’t think its a shidduch makes zero sense. (And if anything would undermine shiduchim since instead of that evening potentially spent on a possible shiduch, it is wasted on an impossible (ok unlikely) one. )
Sechel pretends that they do this in Lubavitch circles, but admits “unless there was something seriously wrong with the first date.”
In other words, they DONT automatically go on a second date