The problem is that some (not all) of the Sim instructors at CX and KA know F#@k all about flying the line. They interpret the FCOMs and QRH as they see fit and have no idea about the practical application.
I have experienced this first hand by a useless Airbus Sim instructor during a RT. After an in depth discussion on the fundamental laws of aerodynamics and how it pertained to what he believed the QRH said... He said "Well I believe that I'm right and your wrong. I'll write it up in your report and let the powers that be decide". Now by the time I could get around to talking to the "Powers that be", the RT had been signed off. The Sim instructor had been proven wrong by all the "Powers that be", however they said to me that once the training report had been signed off, it couldn't be changed. All I got was cc'd on an email to the Sim instructor explaining the fundamental laws of aerodynamics from the "Powers that be". Not so much as an apology from the **** for the bull !!!! that is now on my file.
Sim instructors should NOT be able to write ANYTHING on your ERAS, as most of them are washed out airline wannabees with no clue as to what they are saying on your Training file and how others read and interpret what they wrote.