Brayden Point led the league in PPG playing the bumper spot and guys like Bergeron and Scheifele are very productive goal scorers from the bumper on the PP too. I have to agree with SA16 that he should be on the 1st unit because ice time is the biggest thing regardless of role.
As for the Kakko thing, I could see that too. John Tavares and Kuznetsov, two good puck handlers, play down low on their teams PPs.I could see Kakko and Kravtsov interchanging like Backstrom and Kuznetsov do on WSH’s PP to break down the PK, if they slotted them like you have it.
Lots of talent and things to do with it on the PP so good problems to have like you said.