Age Discrimination?
While the supposed skills are with the "hip and trendy" this action could be pure and simple age discrimination. Competent older workers are well aware of the need to keep up with newer technology. But it seems the dimbulbs running Itsy Bitsy Moron have forgotten a couple things. Older workers and lifers know where the skeletons are and the backstory. Also, sales is mostly about establishing good working relationships with (potential) customers. Can the grey headed sales staff and the replacement PFY has no idea about the account and has to waste considerable time to get up to speed. Time that might cause a customer to look elsewhere.
My experience in another industry was good salespeople knew each account and had an intelligent strategy to work each account. They would make the rounds to meet us, partially to show the flag and partially to find out when we were likely to have some activity for them.