The flag is easily dealt with - it is not a fatal error. This may just be a little personal quirk of mine, but I prefer my software to be accurate, even if mistakes are easily dealt with. 
I’m taking entries for a reasonably large tournament (300+ players). Every now and then I submit my entries for validation to spot membership problems. Yesterday I had only about half a dozen entries, so rather than start fresh with new files from WinTD I added the new entrants to my previous submission directly on MUIR. All of those came back with the wrong state warning, all erroneous. Sometimes things fix themselves overnight, but this morning I got the same results. Oh, and these were NOT JTPs.
Definitely not a front-burner issue, but perhaps something that can be fixed sometime.