Although this is true. I do disagree. I have given the chocks back to the broody after hatching and *my* broody did great and the chick did survive.
This may be true in sometimes it isn't always true. IMO it's worth a try, a life is a life.
Either inder another broody or in an incubator. I have had a similar thing happen. I put them in a Styrofoam cooler with a light (didn't have a incubator at that time) and hatched them. Gave them back to mama after the were dry