Nah. This is what's called Scientific advancement.
This is the issue with the blogger you posted earlier. Other than cherry picking data, he posts old research. Due to the pandemic there has been a flood of new research. This is why Fauci, the WHO and the CDC all changed their stance. It's due to 2 factors:
1) changes in understanding of mask upsides in comparison to their downsides
2) changes in understanding of Covid-19
For example. The early research we had on the virus showed that it was most likely transmitted through surface contact. Touch a surface, touch your face, catch the virus. If that's the case then mask use would likely increase the spread faster.
More recent research has shown that surface contact is extremely minimal with primary transmission being person to person through respiration (coughing, sneezing, etc)
A person well versed in science would read the most recent research and say, "now we understand that masks are effective"
A person not so well versed in science would read the old research and say, "the benefits of masks aren't clear"
This is how science works.