The question remains wether it is a spontaneous act or incorporated into the ritual.
It seems more spontaneous than ritualistic.
Since it seems distinctly separated from the actual ritual area, where the effigies are located. The people having sex are also not interacted or even acknowledged by the order that is performing the ritual.
Eating and drinking on one hand and having publicly sex on the other hand is quite a difference.
Someone hasn't been to a music festival
Especially ones from the 60's...
I also doubt that there would be only mixed racial pairs if there wasn't a planning involved. Could admittedly be just a Larian exaggeration without more thoughts behind it.
I wouldn't put much stock in this. It's a short snippet of a trailer and the sex is a minor part of it which is only on screen for a few frames (Further highlighting its independence from the ritual which makes up the majority of the screen time)
This seems more like aiming for shock factor (Much as to why sex is included in the first place) whereby having inter-species sex has been proven to provide more engagement as the bear-sex marketing showed for BG3.
To the moral side, a lot depends on the backstory of the burning ritual. I'm not sure who is good and evil, if there is any. Is the burned man a mere victim or a danger?
That would be the major question and given Divinity's history, would depend very much on which side you're on.
As is the case with the Original Sin games. The first game you play as people hunting down Sourcerers because they're evil. The second game you play AS Sourcerers and figure out that they're not inherently evil (But do provide inherent risk to the world)
