From an injury standpoint, I already explained that his injury record is not as bad as people think it is.
As far as his performances are concerned, other than in the first year and a half with Jose, he hasn't really gotten a run of games to show what he can do. And the run of games he did get was playing Jose style football. Then came Conte who didn't want creative players in his team. Only now is he getting a chance to play in a style that brings out the best in him.
People are giving him a bad rap, but fail to consider the circumstances. If he gets a good run of games in this system he can easily average a goal involvement every 2 games, which is a top stat for a #8. This is not a Ndombele situation, who is lazy and will be lazy no matter the system or manager. This is a player that was not suited to our playing style of the past 4 years, but is perfectly suited to our playing style now.