He isn't all that efficient and what we are seeing is far from refinement. It's outright slowing down. He doesn't need to be beat to show that he has indeed experienced decline.
Fighting flatfooted, without upper body movement, without using angles is not the sign of refinement. It's the sign of decline and a subsequent stylistic change. It's not a matter of applying a rule it's a matter of observing him carefully in the ring. But fair enough we all see different things.