FBX-glTF converter shouldn't insert extra nodes

FBX-glTF converter which Sketchfab uses seems to insert unnecessary extra nodes.

For example this model,

Hierarchy in FBX (original format)
image

Hierarchy in glTF

As you see, the hierarchy in glTF is more complex due to extra nodes which seem to be inserted by the FBX-glTF converter.

I would like to request that the converter doesn’t insert such unnecessary extra nodes and exports glTF with simpler hierarchy.

Problems caused by these extra nodes, for examples, are

  • Artists using the glTF assets may be annoyed by the extra nodes. They may start with removing the extra nodes in authoring tools
  • Application using the glTF assets can be slower by traversing bigger scene graph that it really needs to be