They are only throwing out a wild guess he wasn’t breathing right which caused him to fall.
I would agree it’s conjecture, but I wouldn’t say it’s a wild guess to go from ARDS and blocked lungs to saying he wasn’t breathing right. Now, did that definitely cause his fall? That’s where I think it’s difficult to connect the two with any certainty. But it’s also much more likely that you’ll fall if you can’t breathe.
My point wasn’t that they’re right, but that it’s not the absurd situation the headline makes it seem. The article title is clickbait. The actual situation is more complicated than just “random guy fell off a ladder so they called it COVID”. A guy fell off a ladder and when they opened him up they found he could barely breathe due to severe lung damage from ongoing illness.