That's the point
Maybe I don't have exact numbers on subpoenas, but Waxman's selective memory of how benign the Democrats were about dealing with an opposing president isn't how I remember the 80s. Or the early 70s for that matter.
Memory is fallible, and prone to be influenced by passionately-held beliefs. Given your insistence on strict rationality and objectivity, I'd think you'd welcome an objective determination of the facts. Wouldn't you?