Barkov's Injury Helps The Oilers: Yay or Nay?

With Aleksander Barkov now out for 7-9 months, one of the big pieces on the Florida Panthers roster that has made it so difficult for the Edmonton Oilers to win a Stanley Cup is now likely done for the year. 

Does that make it that much easier for the Oilers to finally win? Or, will Barkov be back? If not, who do the Panthers get to replace him?