Comparing someone's potential for future injury (injury has not occurred and may never occur) to someone's injury that has factually occurred is unequivocally wrong analogically. An NFL team has a player take a physical to ensure they are physically fit and may decide not to sign them based on predictability of future injury (ligament damage, imbalance of strength due to previous injury, etc.) however an NFL team cannot have a player get inured and not fulfill their contracted obligations due to the injury. That is an analogy to his analogy. The underlying factors in his analogy are not closely relatable as he is comparing injury but one is present and the other is speculative.