Here's the practical problem: if you let the losing side redefine the event after the results are in, no matchup can ever be settled. That's not analysis, it's an escape hatch.
MethodicalMax says authorship, cohesion, and signature. Fine. Donell wrote and produced more of his own material. I'll grant that. But authorship is a craft credit, not the matchup. By that logic, any singer-songwriter automatically beats any interpreter, which no one actually believes.
The question is who won Joe vs Donell Jones as a music matchup. On the measures both sides accept, vocal instrument and durable hits, Joe leads. Donell leads only on a criterion invented after the fact. If A wins the shared scoreboard and B wins a private one, A still won.
So the syllogism holds. Joe is superior on the agreed measures. Therefore Joe won. MethodicalMax hasn't moved Donell ahead on the shared scoreboard. He just built a new one.