I don't know what you mean by this. Of course it was something special. He had the 4th most PP TOI/GP among forwards, behind just Ovechkin, Kovalchuk, and Crosby (who he payed on the PP with). That is a huge advantage in terms of production.
Special for an nhl forward, not special for someone in the top 10 in point by games, is Ev point ranking (#8) is almost the same than is overall point (#6) ranking.
So why post multiple stats that ignore context and are useless for evaluating quality of player?
Goal scored and point scored are not useless stats for the value of a player, arguably useless in how good at playing hockey when they do play, but for player value how much a player achieve to play and produce isn't useless.
It is a huge reason why he ranked highly in PPG. PP time has a significant effect on production.
Everyone in the top 20 had a lot of power play time, Matthews is a very special case it is rare for an elite offensive forward to not play a lot of power play.
Top power play time on ice, forward with at least 80 games played during that time frame
kovalchuck: 6:11
Ovechkin: 5:36
Crosby: 5:35
Nylander: 523
Malkin: 5:23
Semin: 5:10
Richards: 5:02
Staal: 5.01
Bergeron: 4:59
Hossa: 4:57
Jagr: 4:57
Thornton: 4:56
Malkin was 11th in ES P/GP over his time frame. Matthews was 10th.
And does that difference make up for Matthews overall smaller production to become a
better player than one of the best powerplay player of is era ?