You’re right, if they are cooked. ANY bone that is cooked is bad for a dog.
If they are raw, they aren’t a problem.
Have no scientific knowledge regarding cooked vs raw bones. A number of Vets, who are not pushing me to buy their high priced stuff, simply advise DON’T feed dogs chicken bones.
No knock against anyone here, but you go right ahead with your chicken bones, I think I’ll listen to folks I know know.