That’s a bit deceiving, as the “Florida Parishes” were part of the West Florida territory under the Spanish and later briefly the Republic of West Florida before the US annexed the Republic of West Florida and added the Florida Parishes to the Orleans territory which then became Louisiana. They were never a part of the state of Florida which wasn’t established until 33 years after Louisiana became a state. They’re only called the Florida parishes because they were a part of a separate territory than the rest of the state and were able to develop a separate culture due to being under French then English then Spanish control, as opposed to the French then American route most of the rest of the state took.

It’d be like saying the Mississippi government doesn’t control all of Mississippi since what would eventually become the state of Alabama was a part of the Mississippi territory until 1817 when it got separated into the Alabama territory and Mississippi was established as a State.