See my other comment, there are gradients of trust not simply trusted or trustless. A simple example why is that 10 MM parties across the world want to coordin

See my other comment, there are gradients of trust not simply trusted or trustless. A simple example why is that 10 MM parties across the world want to coordinate together for a custom contract - this might be challenging depending solely on the current system (coordination cost, different jurisdictions), but there may be benefits to having elements of both systems involved. Again, this is all speculation - and only time will tell, but I also think it's a debate to be had, rather than suggesting that such a system is worthless if it depends on any real world legal forms.