while conflict in the cockpit has caused problems in other situations, consider:
a friend of the new pilot with TAM said he was very happy there...I assure you if I had a conflict with a training pilot of any sort I would have told my friends about it...and they would be speaking up posto facto.
both of these pilots were past what I consider the magic number of 8760 hours...you can all try to figure out the importance or significance of that number. but if you have that much time or more (as both men had) your ability to put up with crap is much diminished, and certainly not to the point of your own death.
I recall a western airlines DC10 landing in mexico and the copilot didn't tell the captain that the runway was closed...sure, stuff happens...but not here I think.