This name is very good.
First of all, the name of Baxian Temple has certain cultural connotations. The Eight Immortals are widely known in Chinese culture. Not only are they worshiped in Taoism, they are also common subjects in literature, opera, painting and other art forms. Therefore, naming the temple "Eight Immortals Temple" can make people's impression of the temple more profound and increase the cultural connotation of the temple.
Secondly, the name of Baxian Temple can also give people a sense of mystery and desire to explore. The Eight Immortals are representatives of the gods, and each of them has unique magic and magical powers. Therefore, naming the temple "Eight Immortals Temple" can make people want to know the Eight Immortals, and thus attract more tourists to visit and explore. The above answers are for reference only, please do not be blindly superstitious.