This is a common misconception. People often talk about the kanban style JIT because it looks impressive, in some sense. There's all these things going back and forth.

But as Taiichi Ohno himself would tell you: if it looks impressive, it's wasteful. It's a lot of motion with little movement. Efficiency looks disappointingly obvious and simple.

Kanban is a necessary evil when you have been unsuccessful in driving out variation, it's not a desirable state of things.