My feeling is that all the draftees should stick together and protest this ridiculous stance of the Cardinals. These players have busted their butts to get into a position to be drafted and simply cannot and should not take the risk of getting hurt in mini-camp without yet signing a contract. They should protect themselves and their futures in the best and most reasonable manner.
One would think that the Cardinals would want to do everything in their power to protect their players as well. This would show that the Cardinals value the well-being of their players and their futures.
In addition, the Cardinals, by expecting the players to accept "informal" (the term itself is wide open to interpretation) injury agreements, are putting thier players in an unnecessary predicament, where players who choose to protect themselves are likely to become ostracized by many of their new teammates, and even worse, by coaches and administrators. This is an egregious error on the Cardinals' part. It sets a very poor example and tone for the beginning of a new year.
Bill Bidwill has made some strides in contract dealings and expectations recently, but sticking to this arrangement is a glaring reminder of his stubborn and anachronistic ways.