You have to allow people to learn before you can expect them to know.
I should have been clearer judging by the above remark. Yes - the pre-flight briefing on the subject of tyre burst ramifications was discussed carefully.
A couple of accident reports that covered tyre burst events was given to the "students" to read the day before the sim trip.
The FCTM coverage of below and above 80 knots reject policy was discussed.
In the simulator the students were told that around 20 knots below V1 that they would get a tyre failure of the left outboard tyre and could expect a slight pull to the left and lots of airframe vibration.
It was a training exercise not a testing exercise and they knew it. If with all that preparation and knowledge of exactly what was going to happen, I believe that most people would accept the instructor could not do much more to help the students learn?