I do not think you have a point, to be honest.
You're wrong. That's all there is to it. If the radius is only an approximation, it is not doing its only job.
The AoE works "mostly" as indicated, it also highlights affected characters, but as Divinity Original Sin 2 has that "floor is also affected by what you do" an effect and "bleed out" and spread a bit. I guess that is what happens.
No, it's not about surface propagation. I understand surface propagation. Surface propagation is fine. But there are things which do not change surfaces which hit outside the displayed radius.
Second, I do like it that the effect is not entirely limited to an exact pixel, to me this feels more believable and helps with immersion.
Good for your immersion. I'm talking about gameplay.
Third, following from "Second", I need to calculate the risk if one of my other characters stands too close. I like that choice tactically.
What I want is the proper information. When the radius displayed says "your allies will not be hit" and the actual attack hits allies, that's not rewarding tactical choice.
