Are Deep Delves working correctly?

According to the release notes a new faction assault is supposed to enable deep delves for that faction, but the only factions i see deep delves in are All Seeing Eye and Crypt Keepers. It’s been that way for many weeks. It’s there only a window of time to enable them?

Deep delves need to be released for a faction first. So far, these two were the only ones with deep delve weekends.