What he did not factor into negotiations was, "WTF have you won to date?"
Nobody signs contracts based on how many rounds their team won, especially as a teenager. That's a ridiculous expectation of Dubas.
After first 2 seasons (when Eichel and McDavid signed their contracts): Eichel 0.8ppg McDavid 1.17 ppg Matthews 0.92 ppg. Like I said, Matthews fit in somewhere right in the middle between the two.
Yes, I know you like pointing to exclusively raw points, and ignore literally everything else... If we were going exclusively by raw points, McDavid would have one of the best post-ELC contracts in the entire cap era, and would have even before taking one of the biggest discounts in the history of the cap era, and thus it would be illogical to claim a contract is bad because it doesn't live up to that standard.
First off, your numbers are wrong. At time of signing their post ELC contracts, their P/GP was:
McDavid: 1.17
Matthews: 0.98
Eichel: 0.80
And Matthews only moves closer to McDavid when we remove EN points. Now, of course, contracts are not only determined by looking at some raw point number and matching it to a corresponding contract amount. There would be no negotiation if this was the case, and many contracts throughout the history of the cap era wouldn't make sense. We get a much clearer picture and understanding when more is considered.
Let's look at some other numbers for these players at time of signing...
Primary Points/GP
Matthews: 0.83
McDavid: 0.83
Eichel: 0.63
Goals/GP
Matthews: 0.53
McDavid: 0.36
Eichel: 0.34
And when we look at more accurate metrics than per-game, and consider things like PP TOI which skews raw production, just how dominant Matthews was becomes even clearer...
ES Points/60
McDavid: 3.00
Matthews: 2.80
Eichel: 1.78
ES Primary Points/60
Matthews: 2.42
McDavid: 2.34
Eichel: 1.44
ES Goals/60
Matthews: 1.61
McDavid: 1.11
Eichel: 0.79
PP Points/60
Matthews: 6.47
McDavid: 6.44
Eichel: 6.30
PP Primary Points/60
Matthews: 5.06
Eichel: 4.76
McDavid: 3.61
PP Goals/60
Matthews: 2.95
Eichel: 2.52
McDavid: 0.94
McDavid was the better point producer. Matthews was the better primary point and goal producer. Eichel was far behind both of them. Their contracts reflect that.