I don't see where I'm evading or missing your point. Perhaps you could explain? And I didn't make any shadow edits. You sound rather paranoid.

Did he die during the mission? Did he really have a heart condition?

He really had a heart condition which put him at high risk of death during the mission. That is stated in the movie. We don't know if he died during the mission, but I didn't say that, merely that it was likely.

I'm pretty sure that in the movie they say that the genetic tests point to a high probability of a heart condition.

It's left ambiguous as to whether he actually has a deadly heart condition.

There's the scene with the treadmill, but that can just be to show that he is normal.