Since you are not a big fan of animal studies, I strongly encourage you to do a simple human experiment yourself:
For 2-4 weeks cook all your food with sunflower oil and log your general well being, skin condition etc.
Then for another 2-4 weeks do the exact same thing but with coconut oil and/or butter.
I bet you will come to a fairly distinct conclusion and your desire to lose yourself in the analysis of myriads of questionable studies will perish.
Eventually it will makes sense to you, that the introduction of vast amounts of PUFAs to the human diet in the 20th century was not a good idea.
I don't want to haha. I have acne so it would f*** instantly my o3/o6 ratio and I've said enough that vegetable oil are shitty. I've already tried diet enriched with SFA, raw butter and coconut oil mainly, I didn't noticed any changes.
I was a bit tired when I ate butter with my porridge maybe.
And I've eaten a good bunch of shelled pistachios yesterday, no problem. I often eat a handful of shelled walnuts or hazelnuts. I had a period in which I ate milled flaxseeds in a smoothie, 20/25gr per day approximatively (a little less than an ounce).