I as well as my father and grandfather hunted coons and never was a dog damaged to a degree on coon hunting duty requiring dog to be euthanized, unless hit by a car while tracking across road. Some of the coons were only winged and more than once multiple coons would be treed in same tree and when one dropped other(s) attempted to escape and dog(s) were expected to at least put them back into a tree.my grandfather has hunted coons since he was a boy. That is how I have seen the damage that a coon can do to a dog. I've known more than one dog euthanized because of injuries from a big coon.
also, you are talking about a dog vs a coon that was shot out of a tree. Not the same as a dog (especially a puppy!) taking on a full-grown coon 1 on 1
At no point was pitting pup against a coon indicated and once pup even half grown coon will not even attempt taking something that can fight back. If coons are deemed a risk to a confined pup then kennel it in a coon proof location and / or keep it with an adult dog that can deal with coons. You need to get to know racoons. Get yourself a permit, raise one without confinement, learn its habits and limits then you will be able to give sound advice on how they can be managed using dogs. Racoons are far easier than most people think to deal with.
Maybe you live where racoons get really big, for me a monster is 35 lbs.