You should tell them that they were lied to as most of the “advice” no longer applied (or never did) and were completely setup to be displaced.

You should also tell them “better luck next time” as they have to create and find their own luck unfortunately.

This game was meant to be unfair because the ones who have “won” want to keep it unfair for others, and cannot stand losing due to complete greed.

The truth is they (students) have to find a way to outsmart the incumbents. The best advice is to find your own strategy and listen to no-one.