Mate you are quoting irrelevant sections. The fact that I am a licensed motorcycle instructor that teaches this shit makes me able to say what I said and know I am right.
Your first highlighted section:
Move into the correct lane early does not mean turn into the left lane, it means turn into the lane most correct for where you intend to travel. For example if you were turning left into a dual lane carriage way and immediately wanted to turn right into a street 15 metres down the road, you would not turn into the left lane, indicate for 30 metres, change lane and then miss your turn, you would pull straight into the right hand lane when safe to do so.
Your second section: DO NOT CROSS UNBROKEN LANE LINES (ie these are the SOLID WHITE LINES on the 10 metres approaching an intersection) in 99% of cases, including in the intersection in question, on the opposite side of the intersection, there are only broken white lines.
The next section to which you refer deals with turning left from a multilanes, ie turning from a multilane carriage way. Ie when two lor more anes approach a roundabout or an intersection and you want to turn left, you should be in the left lane of the road you are travelling ON not the one you are TURNING into...... UNLESS two or more of the multilanes turn left in which case you can be in either lanes (eg left turn onto Tonkin from end of Leach and any number of Freeway entries.
Again not applicable here, the taxi turned into a multilane carriageway not from it.