I guess that Federal Student Aid must have developed a form that allows people who call about the rollover issue to complete a form that will be used on them end to correct the FAFSA. TBH, this is a first, and I worked in financial aid for many years. I assume the update will be sent to all schools on the FAFSA. I would be concerned if I had removed schools on my most recent transaction, though, as students will do when they send the FAFSA to more than 10 schools. I say this because I suspect that the rollover update will only be applied to the most recent transaction. In that case, the schools that were removed will need to be contacted about the rollover.
You should be able to see what schools received the update by logging into the FAFSA to see the schools listed on the FAFSA that has the new EFC.