Why did the troops of the crusaders hardly adopt the military novelties of the Hussites?

All the military novelties of the Hussites were designed for a hardworking and proactive warrior. In the feudal militia or a mercenary detachment, there were few such soldiers.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.