Statistics required for Monthly Contests?

Hi, I'm just wondering about a slight discrepancy between two pages on the site.

The Terms & Conditions of the Monthly Contests - https://www.kongregate.com/monthly_contest_rules - says:

(2) Submission must be integrated with the Kongregate Statistics API as of the end of the Contest Period.

However the Kongregate Submission Checklist - https://docs.kongregate.com/docs/submission-checklist-1 - says :

Statistics Initialized stat is being submitted. ... Note: As this may modify the game's rating, any games using this service will be excluded from monthly contests.

How does submitting Stats modify the game rating? I'd like to enter the contest on a recent submission to the site, but given this conflicting information I'm not sure how to proceed.

Cheers!