Might want to ask them to make this a priority. Many people were most excited about the Homestead decorating, and since this bug is preventing us from crafting almost everything, it's going to kill the hype and excitement if not resolved soon. Thanks for your consideration and passing this to the resolution team!
EDIT: I'll also note that I didn't have the issue initially. I crafted several items, such as the large boulder, pumpkin, torch, etc previously, but they now do not work after the patch that supposedly resolved the handicraft mastery issue. It must have been broken with that update.
WORK AROUND: I discovered that the bug is related to the scribing recipes that were ported over to handiwork, which is most of the craftables. They are not craftable because the requirements to craft are still tied to scribing for some reason. If you go learn scribing and make it active on your character, you can then craft all the recipes. There's no need to level up scribing, however it does seem that more craftables show up in the handiwork bench with higher level scribing. You'll still have access to several items though. I hope this helps everyone in starting their decorations until Anet is able to resolve the problem. Happy crafting everyone!