The best sort of agenda-driven study is one that doesn't openly look that way, though. Lots of ways to subtly mislead with cherry-picked stats or the "men don't report reliably anyways, so we can't consider that" hand-waving this article does.
Yikes, let's not be misleading in turn. That's not why they don't have those stats. Here's the actual reason and context you conveniently left out:
"unfortunately, the NSFG doesn’t have full data on men’s premarital sexual behavior, and in any event they recall their own marital histories less reliably than do women)"
Demonstrate why they are incorrect or misleading as opposed to setting up a strawman.