This is why it won't get nerfed...... I have been able to do it, but it is not plug and play. There is strategy behind it.
You have to send in a junk team first, but it has to last long enough until Traya waste isolate and then you have to die right away. If isolate resets you have to start over.
Then the available saber has to be retribution and you have to hit that one with iniate. It has to kill her, if it doesn't you have to start over.
Once you reach topple, you have to go into your settings and set auto battle to basic only. This is more of a cautious thing because by default you want to use heals and such (at least I do.)
But you HAVE to watch it because she can come out of topple. If she does, you have to topple her right away with A.V AOE attack. If she does isolate someone you may still be ok as long as you topple her right away.
Once she is toppled again you will want to hit auto again and babysit it.
If she comes out of topple the isolate should clear but if it doesn't just be mindful of that because if whomever is isolated dies, you have to start over.
Then you just repeat the same process again.
This isn't easy and the video that started it is by a group who is insanely good at modding and it's quite obvious that they know what they are doing.
You have to be patient, its definitely not easy, but it is obtainable. I think its similar to the HAAT post FINN rework, it's still possible to auto, but you can't just auto and walk away which is what I think folks are thinking they can do. I have done it, and it backfires, so don't do that haha.