Sun Guang's calligraphy is called Sun Ti, isn't it?

Generally speaking, only by promoting the development of calligraphy and forming its own unique style can the calligrapher's words be crowned with any style. Not to mention the ancient times, even the contemporary (Mao Zedong), Calligraphy (Shu Tong), Qiti (Qigong) and Li Sen (Liu Bingsen) are the only people who are honored as a calligraphy style. Although this teacher Sun writes well, he can't be called Sun Ti.