I'm not sure that's true at all. Suarez scored 111 goals in 159 games for Ajax; - that tells me he's a finisher first and foremost.....unless he also contributed with 120, 130+ assists, which I doubt very much.
Depends on his role obviously. For Ajax he was striker who took penalties and free kicks, so not all those goals come from open play. For Liverpool he's a forward playmaker, and is only less lethal because some top drawer saves have been made from his efforts. Don't underestimate the effect of set piece goals - ask "20 goals a season" Lampard - so surely his ability to create should not be played down? I think the point remains that he's extremely versatile, and his creativity simply allowed him to score more against the poorer defending in the Dutch League. (Let's not forget the goal scoring feats of Dirk Kuyt and Ryan Babel over there).