Last season was really pretty bad for Pulju, but it should still be compared to Rantanen's final FEL season, because with those seasons their age was the same and they both had the same amount of seasons in a pro league. Pulju scored 28 points in 39 games in the AHL while Rantanen incredibly scored also 28 points, but in 56 games in FEL. Although I do think that it is a bit more difficult to score points in FEL, I would still say that Pulju's AHL season was a bit more impressive than Rantanen's last FEL season.
The worrying thing for Pulju last season was though that his skating was clearly worse than his previous season. I am seriously suspecting that he gained too much weight in a short time and also that he has been over training physically and became probably exhausted during the season. Unless he fixes his training, he might really be in danger of getting surpassed by Rantanen, as he has been already for several years been training with one of the best physical trainers in hockey. This trainer is Hannu Rautala, who also has trained Ristolainen with great results and started last season training Laine with good results.