this isn't transparency though, its a promise of disclosure
from an article from the same source (of the report not news item)
Consumer advocates to ESRB, FTC: Loot box odds disclosure is not enough

trusting devs/publishers to actually follow through, after so many times of seeing teaser trailer/videos w/stunning graphics and phenomenal game play to only end up buying some crappy console port is being very optimistic, to put it politely.

transparency would involve have a third party involved to verify the stated odds are correct.