The minority packing is of a contiguous area, makes for a compact CD, and it is the only way to elect a minority, although that would not be guaranteed, but if Hispanics are willing to vote for a black to some extent in a Dem primary, or blacks an Hispanic to some extent, it will happen. Having two Dem CD's means electing two white liberals, and shutting out a minority congressperson.
Do we have historical evidence of racial block voting in Democratic primaries in this area, so that there is a candidate of the "white community"'s choice who will defeat a candidate reflecting the choice of the black or Hispanic communities? The race of the candidate himself is somewhat related to that, but it varies a lot. I'm not trying to be difficult here, but Central Florida is really unlike places like L.A. County or Brooklyn where this equation is usually considered.