This means one of two things.
Either the WON did provide more details and Csonka isn't passing it on (possible) or more likely, Dave Meltzer is doing another one of his famous "I know the real reason something happened, and I'm going to tell you that I know, but I'm not going to actually report on the details of what I know" deals.
I HATE when he does that. He's done it several times over the past couple of years, and it drives me nuts. If you're a reporter, and you have a story, then report the damn story. If you can't report the story for whatever reason (don't want to give a source, can't confirm the story, whatever) then DON'T SAY ANYTHING.
The whole topic of Baron Corbin's suddenly aborted push and speculation regarding whether or not John Cena is the reason is a very hot story right now. To me, nonsense like this report is the equivalent of a little kid dancing around chanting "I've got a secret, na-na-na-nana."
I wouldn't have putten the MITB contract on Corbin in the first place, Nakamura obviously should have been given that win.