Confirmation Bias

Following W.H.O. guidelines, like many countries, Canada marks the deaths of all COVID-19 positive people as a COVID-19 death, regardless of whether or not COVID-19 was the actual cause of death.
That is, a person may die of a clear, alternate cause, like a person given 3 weeks left to live who dies of emphysema, but is still marked a COVID-19 death.

Dr. Barbara Yaffe, Ontario's associate chief medical officer of health, said that half the positive Covid-19 test results are false.
In spite of Doug Ford's claims for transparency throughout the outbreak, this is the first admission to the public that PCR test results can be wildly inaccurate with "almost half" of positive results being false.
With such unreliable testing, has Ontario intentionally been misled and unnecessarily locked down?