More accurately, they rejected the wave of people who tried to add that single word to characterize of his entire career but were not otherwise contributing anything to the article. There’s a good discussion here highlighting how they were looking for substantial improvements by people who were actually familiar with his work, not just trying to affix a label to someone they were otherwise unfamiliar with.

https://en.m.wikipedia.org/wiki/User_talk:Rhododendrites#Don...