Tkachuk likely does not hit 100 points without a Gaudreau, but he has hit 100 points which Brady has not.
He has also eclipsed your 70 point mark twice and was on pace to do it once over the past 4 seasons. So labelling him as such is ridiculous.
Brady on the other hand has never ecplised 70, or came realistically close to it (this season pending).
brady and Matt both have traits that trump the others, but Brady doesnt bring anything to make up for the 40 point gap this season, let alone the gap that seems to exist seemingly every season