Straw man argument. Bleeding doesn't prevent you from playing the game. It does not stop gameplay. It forces you to address the issue, at some point, the same way sprained/broken legs, stuns, etc. do. It does not prevent you from moving, attacking, etc. Further, bleeding is avoidable, very easily. Gun jamming is a completely random element you have no control over. It is a gameplay breaking function that is unavoidable through skill. Temporary though it may be, it presents no challenge to overcome - merely tedium. The fact that you, and others, would enjoy such tedium is fine, but that doesn't make it good gameplay.
Edit:
Item degradation was removed for a reason, and it was a good decision. It introduces further tedium that is not needed. The purpose may be to control item economy, but the main effect would be to slow down gameplay, which appears to be the exact opposite of what they are trying to achieve - more fluid, engaging gameplay. Item economy is better balanced through other systems already in place - loot tables, traders, and tiers.