When I make an argument, I try to be thorough and show evidence, then propose a solution rather than just complaining.
I agree with you that the project is important if it's important. That is exactly what I want. Let the community decide. I hate GitHub implying that my fork is any more or less important unilaterally because I was just the original or not. I document evidence that people follow that link even when the parent is a dead project I put in place.
This one issue has really been festering at me for the last couple years on GitHub. As the number of projects grow, more projects are starting to bitrot and the problem is only getting bigger.