They could have done that while also putting him on PP1.
There's absolutely no reason he couldn't on PP1 and also play the 5v5 minutes.
They also could have put him on the PK.
Deliberately holding him back from developing in every situation didn't do anything for him. They finally put him in the top 6 with better players and his confidence grew and he's been able to use his skills. But they're still holding him back. He's near a 60pt player just playing 5v5. They robbed him of being an 80 point plays-in-all-situations player. While he has to watch Zibanejad maybe feel like doing something.
Same with Kakko. If they don't want him playing PP or in the top 6 they need to get him on the PK so he can get special teams time and not sit prolonged periods of time on the bench waiting for his next shift. Kakko can't do what Vesey does?
There is no excuse for how the Rangers mishandled Laf and Kakko other than "earn it rook". They had Hunt, Blais, and an assortment of other scrubs playing over Laf and Kakko. Inexcusable.
I credit Laf for not imploding internally and keep working hoping management/coaching will come to their senses. They still haven't fully yet. And last night was a perfect example. With 4 players ejected from the game within the first few seconds, Laf should have cracked 20+ minutes of ice time like any other 1 overall pick would have... Rangers couldn't bring themselves to do it and he put up 2 points in spite of that while Zibanejad loafed around for 21:01 including 3:29 on the PP and all he had to show for it was a -1 and he jumped over a stick as his highlight.
Laf should be on the ice in all situations.