Is this true?  Maybe.  Maybe not.

But see this:
https://youtu.be/k9GYTc53r2o

"We are operating under a medical paradigm that is untrue. In short, we are treating the wrong disease." The doctor sounds like he is describing what the article described!

He continues:
"It appears as some kind of viral induced disease most resembling high altitude sickness. It is as if tens of thousands of my fellow New Yorkers are on a plane at 30,000 feet and the cabin pressure is slowly being let out. These patients are slowly being starved of oxygen."

Patients are slowly being starved of oxygen?  Sure, as described in the article, hemoglobin unable to deliver oxygen.

Stay safe.