Do you think lead time as a concept matters so much in open source repos? As in, if a contributor feels like contributing they will otherwise not. Because there's no accountability, the lead time becomes pointless - wdyt?
And I don't understand how to correlate your Dep. frequency here with PR merges. There's one point where the project might build vs considering every PR merge as a deployment. Don't you think that would shake the metrics rating for this repo as per your assessment?