This is like the plastic vs. wooden cutting board debate. For may years, we were all lead to believe that the plastic ones were the more sanitary. Now, we know that wooden board are more sanitary.
I’ve got a wooden cutting board that I’ve been using for years, and I almost never wash it, and certainly never “sanitize” it. Nobody who has eaten my cooking has ever developed a bacterial illness. People have things called immune systems that tend to deal rather harshly with stray bacteria that they come into contact with. I’m reminded of the joke about the travelling salesman who had sex with the farmer’s daughter. “I hear you slept with my daughter last night!” cried the farmer, accosting the salesman. “What are you gonna call the baby?” The salesman holds up a condom and says, “If he gets out of this, I’ll call him Houdini!”