We don't have a lot of evidence about the details of Shakespeare life, which is not really surprising give the time period. And the article actually acknowledge

We don't have a lot of evidence about the details of Shakespeare life, which is not really surprising give the time period. And the article actually acknowledges with a few quotes that he was celebrated. I'm very skeptical about arguments based on what evidence "should" exist for historical events. Why is is weird or surprising we don't have any plays in Shakespeare own handwriting? It is quite possible that Shakespeare didn't write much down himself and the manuscript have have was written down by someone else, e.g. some of his actors.