You're right, but the reason for the endless debate is that this is the history forum and generation after generation of fans seem to pop in here with the todays players are bionic superheroes compared to the past argument.
Remember when Crosby was the best a hockey player could possibly be now because of all the dedicated training, "systems" that no one can seem to say anything specific about, coaching, nutrition and all that... and then McDavid shows up and blows him away. Remember when Lidstrom was the best a defenseman could possibly be for the same reasons?
Now it is the same arguments for McDavid and Makar.. and round and round we go..