Lightning's network topology is still up in the air. Saying "routing is well studied" is well and good, but from what I've read doing it with payment channels without devolving to hub and spoke isn't trivial.
There have been a couple posts recently debating different network configurations [0]. It seems like the difference between Lightning's routing and other networks is that channels need re-balancing, but I don't know the literature well enough to know if there's an existing, well-studied analog.