Why no bonus rolls?

[Aceheart-2722363 (Aceheart)]

@Kaivax

Bonus rolls no longer exist, and the Great Vault captures the value they used to provide to raiders. Non-raiders should also factor in the Great Vault, as completing a Mythic Keystone +15 will award a choice of up to three item-level 226 pieces from the Great Vault.

From the mouth of the horse.