Since 2.0,2 came out I was finally able to get HoW crucible maps grimoire, each card unlocked as soon as I spawned the first time, I'm yet to play in Timekeeper, but so far so good. Now just make TDB quest Grimoire cards avalaible again and make it so having the Osiris Grimoire card auto-unlock the Lighthouse card, that way we will get our hard earned Grimoire and also it would be bulletproof since the Osiris card can only be unlocked by opening the chest at the Lighthouse.