This makes no sense whatsoever.
You're comparing a borderline generational talent, surefire top 5 probably more like top 3 player in the league over the last 5 years to Darnell f***ing Nurse. What are we even talking about here?
And before all this decline talk that I know you will use for your argument.... I'll take a declined 41 goal, 105 point player and 10 goals, 31 points in 25 game playoff performer playing with severe injury in the latter part of the playoffs any day.
He'll be 30 when the contract kicks in, he won't be THAT old. There's tons of examples of great players playing well (especially nowadays) deep into their 30s so I don't think Draisaitl who doesn't depend heavily on physical traits anyway will see too steep of a decline into his mid 30s. The latter part of the contract could be a problem but who gives a shit about 6-7 years down the line, their Cup contention window is now and the next 4-5 years or so hopefully. You need players like Draisaitl to keep that a CUP contention window. If he wants out that's another story and you need to cut your losses but that seems rather unlikely.
The problem with Nurse is that he seems to believe he is in the same stratosphere as Draisaitl when in reality he’s the number 3 best D on this team and depending on how Broberg develops could even be the number 4.