It was decided that a name "Shotoku Taishi" is retained in school education. I approve this conclusion.
"Shotoku Taishi did not exist" means "Umayado-no-miko (Umayado-no-o) did not have remarkable achievements. Thus, he was not a great person". But, teaching him in school education means admitting that he was an important person. It is contradiction between calling him "Umayado-no-miko (Umayado-no-o)" and teaching him in school education.