If TBN breaking gave you two stacks of Dark arts then it would be a dps gain and only a dps loss if it doesnt break.

The other problem is magic damage vs physical damage. If they are not going to provide a way in game to see which attack is magical and which attack is physical then they need to change dark mind to be more user friendly.

The problem with DRK is its kit is still gutted from 3.0 ( Scourage, blood price, blood weapon giving the haste buff so you could fit all GCDs in the window, Dark Dance) Shadowbringers is just Dark Passenger but reworked.

They say the media tour build has received alot of changes since then so there is still hope for blood weapon and dark mind. I gave up on LD and TBN changes.