Popular opinion was a lengthy thread on hatch rates with bresse and that because their eggs are larger they need to be dry incubated to reduce the moisture to succeed.Not sure what "popular opinion" you are talking about. I hatch my hen's eggs, both with an incubator and with broody hens. Some hatches are better than others but generally pretty good. I've hatched shipped eggs twice. One hatch was fabulous, the other horrible. The two averaged out to about 50% but each was way different in the results.
Actual hatching can vary a lot but usually when one hatches it lives. It sounds like you are talking about them dying after they hatch. Not sure what's going on there.
Not my experience!