Thorin says that gla1ve gets overrated as a player because he is an IGL. If he's right, the same should apply to FalleN.
Also, he's only been a dominant AWPer, which is his primary role, for one year of his career, 2016. He's been generally disappointing with the AWP since. His rifles and pistols are decent but not amazing. As a team player and clutch player sure he's good, but as an entry player? Not great.
s1mple and NiKo are far more complete, as is coldzera.