Flareflyer,
The point really is that eJ don't seem to have enough future Captains, or if they do, the pool is pretty thinly spread it appears.
To me it seems eJ are not able to take DEC's in the sense of the word - even if they need them. Therefore, they take DE SFO's again and promote those guys almost instantly I would hope.
I stand by what I said earlier. With your pedigree, you should be aiming higher than the RHS for a few years at eJ.
Good luck in your application when you're able to submit it. I hope you succeed.