The ADEA Traffic Rules have been approved by the ADEA House of Delegates since 2010 (
http://www.adea.org/uploadedFiles/A...inesDentalSchoolsExtendingOffersAdmission.pdf). In other words, this was a measure approved by all parties in dental education, including students, residents, faculty, and administrators at that time. I wasn't around, but that was the date they selected in the end.
The very important piece about the Traffic Rules is the response period given to applicants. I can only state that as an advisor though not having that many people who were seriously affected at the time, there was a lot of pressure placed on applicants who were given offers immediately after they interviewed. They were also pressured to give an answer (in many cases) on the day of their interview. These were really predatory practices that put applicants at a perilous position to immediately accept an offer even if it wasn't their first choice.