When McDavid and Drai are hemmed into their own zone, they get scored on. When they are not on the ice, they almost certainly get scored on.
This teams all out attack play is not going to work in the post season. Star players of any calibre need to learn to adapt to playoff hockey, the hits, the dirty whacks and missed calls. Oilers fans are going to be in for a real surprise if they think one line will take them to a cup. Good on them for making it, I really do mean that. McDavid and Drai are amazing. Best of the NHL for sure, but you need more than 2 players. Washington, Tampa and Pittsburgh had to learn this.
Tampa
Colorado
Vegas
Boston
Pittsburgh
Islanders
Leafs
Carolina
Florida
St. Louis
Washington
Out of all these teams, I think the oilers would be hard pressed to even get the game to 6. Let alone 7, or even less likely, a series win.
These teams have playoff experience, veterans, some have cups, but they all have one thing that is horribly lacking on the oilers, and that is depth. No depth, no cups.