Intelligence has been a poorly defined moving goal post for as long as AI research has been around.

Originally they thought: chess takes intelligence, so if computers can play chess, they must be intelligent. Eventually they could, and later even better than humans, but it's a very narrow aspect of intelligence.

Struggling to define what we mean by intelligence has always been part of AI research. Except when researchers stopped worrying about intelligence and started focusing on more well-defined tasks, like chess, translation, image recognition, driving, etc.

I don't know if we'll ever reach AGI, but on the way we'll discover a lot more about what we mean by intelligence.