Let's put it this way, the instructors don't even have a syllabus to teach from only a list of items that must be completed. No explanation on how to teach it. So basically each prebrief can be wildly different for the same training event depending on the instructor. Let's say some are better than others.

That works on IOE but not in the systems trainer and the SIM. The airbus while popular around the world is very different for pilots that have not flown it before and explaining how it works should be taught a certain way. If the standard isn't working, sure the instructor should be able to adapt to help the student but there must be a standard to start. Right now it's "go teach them hydraulics for 2hrs any way you want"

I had a great instructor and kept him all the way through and it was still hard to grasp the both systems and the flying because of the compressed time and the airbus being "weird". Some are not as lucky.