"I think" implies that it's my own personal thought on it, which is why I put it at the bottom.
Riot tantrum as stated his intention on wanting to show case and talk about the IFS system at tech convention.
This means it's not some sort of tech secret, the information isn't as secretive as we think it is.
Why does riot continue to be vague about what can get you in trouble in the current system?
I think it's because there are no real reason to reveal how such a system works to people who Aren't affected by it, the only people who would be interested in it are people who are actively trying to subvert the system.
Those people however find there own ways to figure the system out, from making a pyramid type scheme, to paying someone to see the code or even using a bot network.
so the only real people who don't know are good, honest player and a few number of players who are "toxic" but aren't interested enough to bother figuring the system out.
[Edit] I should mention that I do agree with your skepticism on the matter (I even upvoted).
Although I would appreciate some form of argument against why my reasoning is flawed, over a bland statement.