Strong disagree. From what I've seen (in this forum, Facebook, and Reddit, among other groups), if you're skipped over (meaning that many others around your PD were adjudicated), you will be not be adjudicated unless you take some action. That could mean intervention by your congressman, dealing with ombudsman at around the 2 year mark, or filing a mandamus.
Everyone surrounding our PD was approved in the first week of October. Our congressperson was unhelpful (and actually gave me wrong advice, which I knew to be wrong at the time). I filed a mandamus the last week of October at the 15 month mark. Nothing happened at all until last week at the 16.5 month mark. Our result was definitely due to the mandamus. If I didn't file, we'd still be waiting. It's really the best solution if you've been skipped over because it forces USCIS to do its job.