The main text is only 23 pages double-spaced. The remaining manuscript comprises images, tables, and references. It's not that long really.
the rest of the 'supporting' material adds little.
You're assuming the comment you respond to is complaining about the length. I believe you're mistaken, and they're actually appreciating that the number of pages references a common practice where you lay on someone upside down and lick eachothers' weiners/vaginas