I think the one thing you are missing is the Colosseum. The Colosseum event is where we can get the little helpful aids to open chests or revive monsters. This is the developer's way of taking that away from us without actually taking it out of the game altogether. You can only use each girl once every 24hrs in the Colosseum and with this "who goes first" shit that will cut out a lot of possibilities for those little helpful aids. In all actuality with the Tower it really only seriously affects those who are worried about ranking. Yes it is fucking annoying to lose or have to refresh though! Out of all of the changes that could and should be made, this was neither a suggestion nor desire of anyone and should be reversed asap. We, the players, are the ones that keep the game going so the developers should be listening to us instead of taking whatever drugs they are taking with this shit!
I agree that the Colosseum made the quests better. I was able to get mythic girls only because of it. I think that was something that, if paired with a PM that didn't have those 'get this type of chest' quests, the game would have been in a place where it did not need too much change if any, and it would have been playable. The colosseum was definitely a great improvement. What I was referring to was the fact there was a time when there was no revival for monsters in the dungeon, so you had to hope for a chest with the type of girl the quest demanded, i.e. "Get 160 epic cards" was impossible because you couldn't fight the epic bosses in the dungeon to chip away at that quest. Now it is down to get 60 epic cards, and you can chip away at that quest by fighting monsters in the dungeon.