1) Here's the actual article if anyone wants to read it: https://www.dailymail.co.uk/health/article-10606107/Did-flawed-tests-convince-Covid-worse-really-was.html
It amounts to "what if?" and doesn't offer anything more concrete than "well, this one person over here said this, and this other unrelated person said this." It's fluff and nonsense that poses a question and doesn't do anything to actually answer it.
BUT
Let's flip this around.
Let's say that the PCR tests returned false negatives? How many people would be walking around thinking they weren't infected but actually were? How many MORE people would have gotten infected with false negatives?
I dunno about you, but I'll take a false positive over a false negative.
A false negative gets more people killed.
A false positive gets someone two weeks of isolation.
Which one do you think is worse?