Florida, Georgia, South Carolina, and North Carolina do not currently have one either [as of a couple of weeks ago], although I have heard Georgia has someone who acts in a somewhat similar role.
Florida and the Carolinas (plus Puerto Rico and France) all shared the same representative as of last season. He used to represent Georgia as well, but later delegated it to someone else.
The map also says:
“If there is no representative listed for your area, please e-mail firstname.lastname@example.org”
However, not having an RECF rep at the tournaments you go to may make it harder to resolve disagreements in some cases. [Edited to add: To clarify, most tournaments won’t have the Regional Support Manager there anyway, since there may be multiple tournaments on the same day, or the RSM may have something else he needs to do that day.]
I remember at least one time when Florida’s RECF rep was able to convince the referees to overturn a DQ at the State Championship, and I’m sure there have been many other times where an RECF rep was able to help resolve a dispute.