Complex sentence: I'm not sure if that one comment, apparently subjective (how did they measure popularity?), from the only ref supporting the entire article, is sufficient--but I'm happy to agree to whatever the consensus view is on that.
Split into simpler sentences: I'm not sure if that one comment, apparently subjective (how did they measure popularity?), from the only ref supporting the entire article, is sufficient. But I'm happy to agree to whatever the consensus view turns out to be on that.