It really isn't. You must have seen the questioning on the day. Every single question was written in advance.
That is not examination, and it could be done by an 8-year old.
You must also have seen how a line of questioning works in a court room, the traps, faints, emotional manipulation, rhythms, tonal variation, etc, etc, etc of a line of questioning that starts innocuously and is entirely dependent on the answer just given.
An example is what should have happened after they admitted still paying Mulcaire's fees. A golden opportunity totally missed. The Murdoch's should have beem hung on that alone, and James was ready - but the line never came.