They drafted Pastrnak, Donato, Heinen and Bjork in 2014. In 2015 they drafted DeBrusk, Carlo, Lauzon. In 2016 they got McAvoy. That’s 2 franchise players and 6 NHL regulars (5 if you want to quibble with Lauzon) at this point, and it doesn’t include Senyshyn, Zboril who haven’t totally flamed out yet, or Vladar who has shown promise.
Yes, they missed on players but those 3 drafts were franchise altering. I don’t lose sleep over 2015. It is what it is, those drafts have helped them become one of the best teams in the league.