I think Hernandez will hit the target most of the time as well. And while Ole's rep is obviously based on his best form, best season, best showings for United there was a time when he wasnt finishing all that brilliantly next to Ruud in the 06/07 season. Thats a guess by the way, I dont know if it was that specific season but I remember him being first choice next to Ruud and missing lots of good chances in one of his seasons. He got 11 goals in 32 games in all comps that season so I'm thinking it was that season.
If Solskjaer, a player renown for his cool finishing, can blow cold with his finishing for a season or two then I dont see why one or two weak finishes in pre-season mean that Hernandez cant be a great finisher as he develops. The world cup goals, coming into the side and coming off the bench to score against France and Argentina are a better judge of his composure and finishing than pre-season matches. And he didnt miss much there. He took his chances very well.