Eh, nobody said that. Do what you want, just as I will do what I want. The article just points out that some cases still can be serious or linger on, that’s all.
This sort of lingering on effect in seemingly healthy people occurs sometimes with other usually moderate-at-worst respiratory diseases (which may well be other coronaviruses.)
I am fairly healthy, can and do sometimes spend entire afternoons (with some breaks) pushing a manual push-mower as much as 10 miles in 1 long afternoon. (I worked out what distance was actually involved in push mowing my Mom’s entire yard!) There might be some raking, too. This in my mid-60’s. I never smoked and do not have any chronic lung problems.
Yet, I had a cold almost 2 months ago (my entire family had the bug in varying degrees, tested for COVID-19 and came up negative), and I am STILL battling a sort of residual chest congestion and cough, with some shortness of breath on occasion. Every 2-3 years I get a particularly noteworthy case of this — I assume it’s due to one particular virus I am susceptible to and my immunity wears off.
I’d guess that if I do get it, COVID-19 might well give me a very hard time in this manner, despite my generally good health and endurance.