Sorry but saying "Godot is fine, everything else is broken" isn't really acceptable. If I were to start a 3D project only to find out that importing models didn't work in the game engine I chose, I would move on immediately.

In all honesty (without knowing the specifics of what is broken, I've only ever worked on FBX importers), if Godot want to be taken seriously then they need to be able to import without plugins, warts and all.