Ive had a trumatic past life, but i identified as a cetacean long before i remebered the trauma. I had remnants of non traumatic memories before, but they were impactful in a peaceful way, instead of violent. I think, it goes both ways, just as you can rember a trauma, you can remeber a delightful event. Being impacted so strongly positively with a beatiful life usually is what causes the therianthropy i believe, like finding an experience youu love soo much and it just so vivid you cant forget
of course over the course of soul evolution, you may also have trauma in the same therio type.
I dont think past life trauma would be the direct CAUSE of therianthropy. i believe both a strong negative OR Positive memory can still stay in tact over incarnation process. I believe the trauma comes back in this life to heal, and also make a difference in the world, now,in a human body, its pretty useful to voice out what you couldnt communicate to humanity before.
I know thats what im doing, and im feeling much more at peace with my trauma by being an advocate to my speiecies