Way too little information in the article.
"We know about 95% of people are currently being treated primarily for other conditions and happen to test positive while in hospital or on admission."
Or it could be if a person gets covid they are more likely to get something else.
In the US it has been figured that some people have gotten covid 6 times.
The virus has changed from a destructive virus that was likely to immobilize the host, causing the infection rate to be 3 people getting infected by a single person. Through a process of evolution, the new format is painless, symptomless, and because it does little if anything to immobilize the host, the infection rate is now around 20 people getting infected by a single person.
This is a global phenomenon and has to be viewed as such. To try to make sense out of it any other way is like the 3 blind men's inability to properly describe an elephant. If we are going to go by finger length, perhaps we might as well bring back phrenology. The structure of our DNA is a key factor and that is much more complicated than physical characteristics, unless one is considering pre-existing conditions.
While all this is going on, far in the background, covid is churning away day after day, where 1 out of 20 people who get covid are getting long term covid. Because it's only been around for 3 years, no one knows how long it can last or if it can pop up out of the blue years later like shingles.
The long term version has 2 variations, one where the symptoms are "covid" symptoms which have no known standard treatments, and the other version where a known disease condition manifests itself that has nothing to do with covid, such as heart disease, and can be treated by standard procedures.
Because the samples are not global in size, the results of studies range from saying that if a person has symptomless covid, they won't get long term covid, to it doesn't matter if a person gets any symptoms, a person can still get long term covid.
While it is entirely possible that strange things may be seen to be happening in small size samples, it is far more likely that in large global size samples of 8 billion, the physical condition of the body is going to have a greater impact on covid than the physical characteristics of the body.
