Crystal Tower Loot Lock Out how long?

[Felis]

I'm someone who's all about trying to make MMOs casual friendly.

Sorry, but this is not about casuals.
It is about managing the longevity of a content. In classic design, we would have a dropchanche where we would be happy to get at least 1 gear each week. Or 1 gear each 2 weeks (with increased happiness). With a portion of drama if someone get his second gear although it is someone else turn to get it.

This is only a modern, a more human way to manage the same thing. To make that the players don't get everything in short time, but piece for piece in long times.