Your "common sense" is not equal to evidence in the form of witnesses who give first-hand accounts.
A number of witnesses saw Jesus walk on water. What he did defies most people's "common sense," yet billions of people throughout history believe that he did it. This fact also defies "common sense."
As you may already be aware, witnesses are horrible historians. The mind and the senses tend to "fill in the blanks" when the brain is unable to fully perceive what has happened. Yet despite significant scientific support for this fact we tend to give immense credence to "eye-witness testimony" both in court and in church.
Secondly I would note that there is a difference between "truth" and "fact". Shioda may have presented the truth, but I, like Eric Roku, question the facts.