From what I can gather BOLT #4 is applying similar methods, such as obscuring previous and future hops from intermediate nodes, to the TOR network for routing payments across the Lightning network.
If that statement is broadly correct does that mean deploying a Lightning node on the TOR network would not be very compelling? There may still be benefits for NAT traversal and other things? But for obfuscation/anonymity is the idea that the Onion Routing BOLT will be as effective as TOR?