Like many people here, I've also created an account to lend my support to this thread! After reading all the comments so far, I have to say that I completely agree with everyone here. Playing a Redeemed Dark Urge was the most fun I've had in the game so far, I absolutely loved seeing my character more connected to the plot than Tav and seeing them progress through their story was incredible. But the reaction of our companions throughout the game seemed really lacklustre, to say the least.

We do have the big act 1 and act 2 camp scene
Alfira and not killing Isobel resulting in our butler telling us to kill our love interest/BFF
which are really important for the character development and are great but aside from that there is nothing much going on. Many characters throughout act 2 and 3 know the Dark Urge and none of the companions react to them. For example :
Act 2 scene in Illithid Colony:
In act 2, in the Illithid Colony, Kressa talks about how she loved experimenting on the Dark Urge. I think it could be nice to have our companions react to this, even if, like someone said in this thread, just have one of them say in a banter something loke : "How does she know you?".

Act 3 corronation scene:
For the Gortash reveal, the companions DO react to the Dark Urge being the mastermind behind everything that happened to them untill that moment, but again, the reactions feel empty. They are angry for the one line they say and okay the second after. I think It could be nice to have them be uninteractable after them saying their lines until the next long rest (to hammer down the fact they ask for time to think about this big revelation). What would be really nice to conclude this moment, would be to have a small camp event where the companions confront the Dark Urge. Or if a camp event is really too much, just after the long rest, have the companions apologize for reacting so harshly.

Act 3 scene dark urge key moment:
For the big moment of Dark Urge when rejecting Bhaal (the most important one in my opinion), it would be really appreciated to have the companions whith us at this moment react to our death before Wither's intervention. Having nobody comment on it or reacting, not even our love interest is really anti climatic. This moment is the conclusion to our personal story, not having any reaction from companions we have been travelling with for so long, who we helped through their story, feels lukewarm. Maybe, having them try to run to our character or use one of the line they say when our character is down in combat or something like this before being interrupted by Wither resurecting us would alreay be miles better. Afterwards, during the next long rest, it would be really noce to have a conclusion to our story with a scene with ou companions congratuling the Dark Urge for resisting Bhaal.

As someone who absolutely love the redeemed Dark Urge route, I was really awaiting Patch 7 to fix some of the reactivity, if not add more (especially after reading this line in the patch note: "Dotted more Dark Urge reactivity" and was disappointed to see none of it. I really hope, at least, the key moment for the resolution of a redeemed dark urge could be fixed before Larian stop updating the game. Larian, if you could do something, we'd all be really grateful!

(sorry if my english feels wonky, it's not my first language, I hope everything is still comprehensible)