"Looking back on it all, it has become clear to me that we didn't handle the situation with Susan as well as we could have," the Scotsman quoted him as saying. "Yet, to be honest, I don't know that I could have done it any differently," he added.
Simon's comments came as the show's runner-up missed more live BGT concerts. Susan sparked health concerns after a four-day stint at a rehab clinic following exhaustion after facing defeat in the show's finals. The 48-year-old later returned onstage and has been wooing fans with her live performances.