You seem to have it in your head that Honda doesn't know what it's doing, which is amazing. Do you think that they didn't rip apart every AWD system on the market and not hire AWD specialists for this project? Honda knows what it's doing. In my opinion, it makes you sound dumb to nitpick the system based on the schematic drawings and 3D diagrams of the system that were povided by Honda. "In theory" doesn't mean much in the real world of automotive design. If it did, automobile engines would have a much higher efficiency than 25% or so, for example.