Lets look at it this way SE tried the no lockout thing in FFXI. Delve has no lockout you can keep going back in over and over as much as you want. People capped out on gear pretty fast in like 2 months, then started selling runs to people who were less skilled / didn't have a ls that did delve for 20m a run. Then complained they had nothing to do and quit the game.
The whole reason they have a lockout is to slow down progression so people will continue to play.