Not to mention...Giroux wasn't putting up 90+ at drouin's age. His first good season(76pts) came in 2010-2011 for the majority of which he was 23 years old. Drouin won't be 24 until the last week of next season.
This was Claude Giroux's supporting cast
Philadelphia Flyers 2010-11 roster and scoring statistics at hockeydb.com
This was Jonathan Drouin's supporting cast
Montreal Canadiens 2017-18 roster and scoring statistics at hockeydb.com