Lafreniere is not blameless here, but if I were the Rangers, and was fortunate to draft 1 & 2 OA in consecutive years, both would have been on the top two lines and guys like Kreider would have been moved to the 3rd line.
I personally believe you develope offensive players by putting them in offensive situations and let them build their confidence.
There's always the possibility that both AL and KK pop in a year or three, but the further they get from their draft years without meaningful minutes on PP and or PK, the less likely it will be that either guy develops into close to the player that they were projected to become.
I've said this before, if I were either guy, I'd low-key asked to be moved this summer.
This is not an organization that is willing to put in the time, effort or roster decisions needed to properly develop what should be top end prospects.