Thank you for this effort. All the data is clearly laid out, which is really nice.
As a plugin maintainer I already checked out manually on wp.org in the popular list where some of my plugins were. If they were going closer to the next step or rather to the previous step.

And yes, I understand it is only one simple datapoint. And no, there is not really competition if there is no money to be made.
But for Free plugins, open source and gratis, this is still a good form of feedback on things. Am I doing things right or not, is the usecase popular or not. For me it is valuable information on where to spend my time.