Is it ethical to fire an RA?

After a semester of hard work and sacrificing time for the members of his floor, an RA (We'll keep him anonymous) was relieved of his duties. Though my opinion cannot change the matter, I am against this decision. Sure, maybe it seemed as if he was not doing a good enough job maintaining peace on his floor, or maybe he didn't write enough people up during the first semester, but i feel as though releasing him was a mistake. I think it should be known that this RA had a challenge in being assigned to a floor that I feel is likely the craziest floor on campus. The RA, despite not appearing to be too active, was still able to have an influence over the floor because of his presence. So now, arguably the craziest floor on campus has no RA presence and is now unsupervised. So do the pro's of firing the RA outweigh the cons?