Lando neeed a bigger pic.
Brown Jelly infection is evidenced by a brown gelatenous slime consuming your coral (rather quickly too, you can easily lose a large coral in less than a day). If it doesn't have the gelatenous material, it's not brown jelly.
I had an elegance coral about 7 years ago for about 5 years, when we moved, I sold it, it was perfectly healthy when I sold it and about 5 times bigger than when I bought it. The bad elegances had just started showing up on the scene when I got mine, you still had a 50/50 chance of getting a good one, luck of the draw I guess, I did lose one to all they symptoms that are indicitive of a bad elegance before I got that one.