Please gather 2nd line c stats and post them. I unlike you track them and can tell you point production wise the past 2yrs Grabs has been in the top 30 OF ALL NHL C POINT PRODUCTION WISE.
2nd line Centres from recent SC winners
M. Richards: 4 of his previous 5 seasons were above Grabos career high for points.
D. Krejci: 3 of his previous 4 seasons were above Grabos career high for points
P. Sharp: Hawks won in 2010. That year he had higher than Grabos career high, and has since shown that to be a consistent part of his game.
Malkin: Don't have to say anything
Zetterberg: Don't have to say anything
Getzlaf: To be fair, he wasn't the same Getzlaf he is right now. That was his breakout year, but he still matched Grabos career high while also playing a punishing power forward game, then went on to show his increasing abilities in the playoffs with 17 pts in 21 games, and was higher than PPG the following season
Brind'Amour: Don't have to say anything
Offensively, they've ALL shown more than Grabo has, by either just a little bit (Krejci) or a lot (Malkin, Zetterberg, etc). Most of them also bring better intangibles, either being better defensively, being more physical, or both (though Grabo has improved a LOT defensively the last few years).
I, unlike you, can remove the blue-tinted glasses, look at who has filled a certain role on the SC Winners (which is what we have to compare ourselves to, unless your goal is to simply be slightly better than average by using "average" as the benchmark for comparison), and see who on the team has performed equal to or greater than the average player in that position for a SC Winning team, and who has performed lower than that. Grabo is an example of a guy who has performed at a lower level than the guys that filled his role on SC Winning teams.