Why are mosses a dead end in plant evolution?

Mosses are rather primitive representatives of the plant kingdom. This is essentially a dead-end branch of development, since they no longer develop and do not give new types of plants in the course of evolution. Mosses have existed on our planet for millions of years and at the same time feel great, as do many primitive living organisms that have not been destroyed by various cataclysms. Mosses have a poorly developed root system, they grow rather slowly, multiply with the help of spores. Therefore, they cannot change.