Have had similar problems with Rhys OWCs. Not enough head space for the bottles so the slightest amount of stress causes the wood to shatter. I drink mine so just an irritation.
Had three of five boxes broken - two on the bottom, and one on the top sides that holds the top on. The bottles look okay, thankfully, but I’ll be reaching out to Scarecrow to see what’s what.
I really don’t think the wood is “the” issue. Wineries have been shipping in wood for years with no few issues. Why Now? Shipping has become a major industry and an expanding one too. Speed (efficiency, $) is more important than how the package is treated. We see more damages on shipped products than in years past. Styrofoam is your best bet but I think there is a competition out there to see who can defeat the best packaging and destroy the product. The people we work directly with are great. We don’t know what’s going on in sorting room/shipping room, nor your delivery person.