Replying to When should pre WTR certified FKS's release?

I understand the question I'm asking does rely on a bunch of factors, But I'm a bit concerned that i should have ejected from a ski with the DINs set at 8 when i skied over it and it crossed under my other leg smashing me face first into the snow. I'm using WTR soled boots and I'm curious if my boot jammed them up, or if The binding elasticity and angle was safe and subtle enough that my skis stayed on.