"I think it is pretty solid actually by I do a lot of driving"

So your anecdotal evidence from your personal experiences driving is what led you to make this wild speculation?!  I drive around 50K km, that's a lot of driving, highway, some rural, I've seen the aftermath of auto/deer collisions, but I doubt either of us see many, if any,  live to make accusations of blame against the drivers.  I've hit two doing 80km/hr, no signs were posted, they were there in an instant.  I've also witnessed how deer act, they will run from field or forest across the road in a flash.  Make sure you slow down if you see one, usually more follow.