I don't. Wrestling is about execution.
You don't think there's a huge difference of talent between a guy who's able to execute a script and a guy who's able to put his own match together or even call it in the ring ?
There is but since we arent privy to the details of how matches are put together most of the time, I can only call what I see.
Even if you know you're comparing Apples to Oranges if you're comparing a New Japan match vs. a WWE match based on one having no agent layout / input vs. one that you know does?