User blog comment:Megadracosaurus/Why Cinder is affected by the SEW's/@comment-5717877-20181222190200/@comment-26018514-20181222201057

why didn't the empire release a statement about how they were afraid the rebellion would find out their giant space station probably had a missile allergy when they are placed in a specific hole?

It's not necessary the others know the reason for Cinder's kryptonite, just that they know it exists.

Keep in mind; Salem is playing at being a god, a "generous" one... now what happens when your gods "gifts" come with serious flaws? It makes their divinity questionable. So Salem blamed the problem on Ozpin's maiden powers rather than the tools she provided, to save face.