Why not? If a player brings _decent_ 2nd line scoring and a high end all around game, in my books that makes the player am excellent 2C. Look at the guys who scored around 45 pts last year and tell me they aren't 2C's either ... Hodgson, Vermette, hell Kesler is right in there. So much value can be found beyond goals and assists that it is ridiculous to define the quality of a player by whether they score +5 or -5 points of some arbitrary number.
As I said, offensively it's lower than average for a second line centre. If a player is going to be above average, for a position, I'd personally say he'd better be at the very least average both offensively and defensively. Below average offensively, and above average defensively, would lead me to think of an average player at that position.
Other players that scored at a similar pace include guys like Matt Stajan, Tyler Johnson, Mikael Backlund. I also don't consider guys like Hodgson or Vermette ABOVE average, or "excellent". Not even Kesler was year.
A 45 point player that is EXCELLENT two way is a top notch third line centre or average second line, as far as I'm concerned.