“Breaching operational security” doesn’t invalidate his reporting in any way. It might impact his ability to imbed in the future, but he’s still been there longer than anyone. I don’t think you can write off his insights based on pissing off one NCO at some point.
Like I said before, there’s more to it than breaching OpSec, though that should get him shot.
Want the truth on Yon, go to Blackfive and find it. He had some good stuff, but he’s worn out his welcome with some of the stuff he’s pulled lately.