Because our need in midfield is to add more goals, creativity and press resistant players. I would say that set pieces would also be a bonus and the ability to progress the ball through passing, so we no longer have to bypass the MF like we currently do would help as well, but not quite as key in a Conte system.
This guy does not add goals, does not take free kicks, has no creativity in his game and isn't very good under pressure or a progressive passer of the ball.
There is little to nothing to indicate that he adds anything to the MF that we don't already get from our 3 "main" MFers- Skipp, PEH and Wanks- and we have seen that MF isn't close to good enough. There isn't much to think that he is an improvement over any of them.
I also would say there is not limited information on him. He played in one of the biggest leagues in Europe, as well as playing in international games for Morocco. He is 25 years old so has multiple seasons playing as well. It might not be direct viewings of his game but there is plenty information out there about what this guy is all about. It is unlikely he is a secret KdB clone just waiting for his chance.