lightning network needs a design overhaul
Discussion
Still lots of areas for improvement but I doubt overhaul is the answer. It already have certain level of network effect. These kinda protocol level stuff, overhauling is like doing a new protocol. Ark for example, is one of the potential protocol for scaling and payments. Big changes tend to break things and most will not be keen to break things. Bitcoin is not Ethereum.
the basic assumption on lightning is a 2-way payment that bouncee between the two parties. while it is good, it relies on capabilities of inbound and outbounds. in reality, payment rely on multi party transactions, often, not in a circular way