Thank you for your kind words!
What kind of export format do you mean?
GLTF+bin+separate textures?
Or GLB cleaned from any texture references?
There should be no problem to add other export formats. This month there will be added the new panel with user settings. Meanwhile the next update (tomorrow) will bring EXT_mesh_gpu_instancing to the functions available. Since you noticed that you use shareable geometries you may think about using this feature in your workflow.
I’ll announce all functional changes in the main thread - GLB Optimizer for Geometry and Texture Conversion (WEBP and KTX2)
Draco compression will be implemented too, sooner or later 