Change Of Match Schedule

[Imprudent]

As usual, the teams at GTR received their match schedule on the Thursday night. However, when teams arrived on the Friday morning, they were give a new and 'updated' schedule. Since I have never heard of this happening before, I decided to look over the FIRST Overdrive manual and came across this:

3.6.2.1 Match Lists:
Match lists for the second and third day of competition will be available on the afternoon of practice day. The FTA will determine what time these lists will be generated and distributed. The Pit Administration Supervisor will manage the distribution process. This list includes both days of matches and provides information as to when teams will participate, with whom, and against whom. The list is final and the schedule will not be altered."

I was wondering if anyone is aware of why the changes were made when it appears to be against a very clear-cut rule in the manual.