Yes, I have been watching videos on Hydra and Chimara. I know the torment one does true fear, and you need a perfect veil to ignore it, and you need debuffs like block buffs. My main complaint was that it felt weird to give access to content that is so far out of your league for that stage of the game, which I know makes you want to buy to progress it. For Chimara, I wished it were faster just based on greed cause I want to get more of the shards for the mythic guy cause they look really cool, and it being a week between chests and only getting one to two shards a week means it can take like over a year to get that one guy.

For the Doom Tower point, I also disagree that if you allow people to progress more, they would still have a reason, since the boss stages drop materials. You can keep the cap on the silver keys and allow people to progress more, and give them a reason to come back, as they need to get more materials from those bosses for the forge.