Muir was the Ultimate B.A. and he died from Pneumonia?

So I was reading this John Muir biography written by John P. O’Grady for Nineteenth-Century American Western Writers, it is about six pages long, and in it O’Grady describes FIVE instances where Muir nearly dies. With five near death experiences in six pages he appears a wee bit reckless, or at least that he has very bad luck, but HE NEVER ACTUALLY DIES. This is incredible because he probably should have in some of these cases, except for the fact that he is invincible!

The first occurred as he was digging an eighty foot well for his father:
“As he resumed his excavations at the bottom of the eighty-foot shaft Muir was overcome by carbon dioxide poisoning, only by a tremendous act of will… was he able to crawl back into the bucket that his father had used to lower him. Daniel Muir hauled the bucket up just in time.” (O’Grady)
Luck you might say, but I think he probably could have lasted another ten minutes.

The second happened when he was working as a mechanic in Indianapolis in 1897, he was temporarily blinded in a factory accident, but this accident led him to make a very important decision, to give up business for wilderness.
“This affliction has driven me to sweet fields. God has to nearly kill us sometimes, to teach us lessons.” (O’Grady)
John Muir would make nearly dying a really positive experience. Ahh the little optimist!

The third brush with death happened after his thousand mile walk to the Gulf of Mexico.
“Upon reaching Florida at the end of his thousand-mile walk, Muir was overcome with malarial fever that nearly killed him.” (O’Grady)
After nearly dying, he decided rafting down the Amazon might not be the best idea, and so he went to California instead, and got put on a quarter. YEAH!

The fourth occurred when he attempted to ascend Tenaya Canyon in the Sierras, as a healing adventure after spending too much time in the city.
“Soon into this hike and its spiritual cleansing he slips and falls, knocking himself unconscious among the boulders. When he regains consciousness, he is ‘confident that the last town-fog had been shaken from both head and feet.’ Tenaya Canyon has restored him to his mountain mind.” (O’Grady)
There he goes again, making things positive and being freakishly connected to nature.

The fifth near death experience happened when he was attempting to clime Mt. Ritter:
“After gaining a point about half-way to the top, I was suddenly brought to a dead stop, with arms outspread, clinging close to the face of the rock, unable to move hand or foot either up or down. My doom appeared fixed. I must fall. There would be a moment of bewilderment, and then a lifeless rumble down the one general precipice to the glacier below.” (O’Grady)
He was just pretending to give up...

This last quote from The Mountains of California is a little bit dramatic, because he obviously didn’t die. But REALLY, if any of those things happened to me I would be a goner! I would have died of carbon dioxide poisoning; I would have remained blind and then died due to some weird virus germ that wouldn’t have even dared to attack John Muir, I would have been human mash on the bottom of a canyon or on top of a glacier. He weaseled himself out of those situations but died of pneumonia, REALLY?! I doubt that really happened I bet it was some kind of conspiracy. Gifford Pinchot was probably jealous and just wanted him to stop getting all the attention.
Really though, the Ultimate B.A.