When it isn’t about loot boxes and just about RNG in a game there is no law to say the game has to publish all the chances.
In fact I think it devalues a game to do so, it reduces a game from a fantasy with rolls in the background to raw numbers, and it removes all sense of exploration. EVE doesn’t publish RNG stats of sites and loot as far as I know, it’s only by taking part in those activities that players can figure out what the chances appear to be.
And in the case of this new reward for an event track many players seem to be betting the chances of obtaining a titan are far higher than I expect them to be, seeing the prices people pay for this crate on the market.
Or maybe I’m wrong and people do pull a Titan blueprint out of every 100 crates.