Laf and Kakko combined went a whopping 35 games last season without registering a shot. How about we work on that first since our kids literally need to take baby steps every year.
Yes, they both need to shoot more. When you look at shots though, how often would other players have zero shots in a game if they didn't get shots on the PP? That definitely pads their stats.
Total shots at 5 on 5 last year (calculated based on goals and shooting percentage since NHL.com doesn't list the # of 5 on 5 shots):
Chytil: 17 goals shooting 11% (155 shots)
Trocheck: 10 goals shooting 6.9% (145 shots)
Kreider: 19 goals shooting 13.8% (138 shots)
Zib: 16 goals shooting 13% (123 shots)
Panarin: 19 goals shooting 16% (119 shots)
Laf: 12 goals shooting 10.3% (117 shots)
Kakko: 15 goals shooting 13.8% (109 shots)
Kakko and Laf have the lowest shot totals, but they aren't far off from Panarin and Zib. And when you factor in 5 on 5 TOI, their totals are better than Panarin's:
Panarin: 1223.17 minutes
Trocheck: 1204.03
Kakko: 1109.73
Zib: 1093.33
Laf: 1082.7
Kreider: 996.72
Chytil: 936.1
Shots per 60 minutes 5 on 5:
Chytil: 9.94
Kreider: 8.31
Trocheck: 7.22
Zib: 6.75
Laf: 6.48
Kakko: 5.89
Panarin: 5.84
Looking at the numbers, yes, Kakko and Laf need to shoot more often and Trocheck needs to score more often on his shots.
Chytil is a beast. For comparison:
Pastrnak: 12.87
MacKinnon: 11.65
McDavid: 9.6
Those 3 players led the league in shots on goal last year at 407, 366 and 352, respectively.