What? Draisaitl was hardly the player then that he is today - I'm sure there were questions of whether or not he could be "the guy" for a franchise looking to pay that steep price. Still, based on what Edmonton paid at the time, they could have been worried about the possibility and decided to cough up what he wanted. Still, the cap situations between the two teams is night and day. McDavid was the only guy getting paid big - they could afford to splurge on Draisaitl.
..and not sure what Nylander has to do with anything. He's not comparable at all to the caliber of player we're talking about. Marner is a legit "face of the franchise" type player who will be 22 years old at the start of next season. We're comparing apples and oranges.
Look, I know the idea of losing a player like this probably sucks to think about so you'll try to concoct any reasoning you can to convince yourself that it's ridiculous, but it really isn't. Luckily for you though I'm sure when it comes down to it, Dubas will pay the man what he deserves, and he deserves to be in the same ballpark as Toronto's other two stars.