I'm really enjoying the game however, it seems like they're trying to jam three games in one Dark And Darker Gold.
I mean Removing the circle would make the whole thing a Coinflip (as it is if what you choose to go to hell, it's completely due to luck)
Circle is also a good way to introduce gear burn . Otherwise, there would be very little (any Ai you be able to encounter in combat while already having loot won't harm you by itself)
It makes the quicker pace possible (something i do kinda enjoy especially when I have to perform a lot of tasks for work and only have time to play a tiny)
If they keep the circle then they should remove the consuming part the circle. There is no reason to not be able to tank it if you're in the healing. This isn't a BR as the collapsing circles only creates fights and with more players pushing for an event (now 18) there's less access for all.
The circle can lead to faster speed, making the game much more entertaining. Yes, occasionally you get consumed by the darkness when you're not the last man standing cheap Dark And Darker Gold, because the portal is distant or you're not aware that it exists. I've experienced a few times when i was engulfed by darkness and bags of loot. And certain, i became angry for a second but then "play again" has been clicked and i'm all set to go.