Depends what your expectations are for him.
If you expect him to be our goalscorer , score lots of goals against mid to low table teams , help us finish 2-3 spot ( I don't think we'll win La Liga but the season is long , who knows ) then no he is not fraud , he does a really good job in that department.
If you expect him to carry us all the time , be clutch in the CL all the time especially in all the games that matter ( especially in the group so we can get out of it ) , be a top 3 player in the world, or have the same imput Messi had in his last years here, then yes , he's a fraud.
Reading what his fans said about him in the past 2 years I honestly expected him to be ultra clutch , score everytime out of nothing , carry us to glory but I'm completely let down.