Way too much worrying about tanking.
I do think there is value in somehow capping how many times a team can get first overall in a row: the Oilers ruined too many good players, imagine if Hall/RNH and, to a lesser extent, McDavid didn't end up there. Outside of a buffoon like Tim Murray, no one wants to actually, actively tank. The Oilers just sucked, they didn't tank.
In fact Tim Murray has made a very strong case as to why actively tanking leads to a lot of problems. I am convinced one of the reasons that franchise is going nowhere was how brazen the tanking for McDavid was.