Not sure of their motivation? Speaking in the royal “we”, Down and Welded provided a good insight:
First, we need to dispense with the inevitable (and understandable) wave of sympathy for the captain of VH-NGA, and I think that’s been dealt with in the incident thread. Then we have to process the concomitant and ever-so-slightly guilty ‘there but for the grace of God go I’ declarations from other pilots (slightly worrisome, because they tend to sound like ‘If I ever got myself into a similar position (and I think I easily could) I would hope to get the benefit of the doubt and plenty of slack too’ confessions)...
You see, if you aren’t prepared to dispassionately condemn the pilot of NGA, you’re confessing that you could easily make mistakes. Shame on you!