I don't know man, I can't agree with this. I think you are underestimating not only their survival instincts but their intelligence. Critical thinking, ok maybe not depending how you define that. No they can't sit down and do a NYT crossword puzzle or try to make a 1 pound climbing stick, but they sure as sheet know their territory a lot better than we do, no matter how much we scout. They certainly learn. They absolutely have their next move planned out, and why. We've all bumped into the fawns that run off like bumbling idiots. They die or get better. Old bucks don't do that stupid stuff, often. At least not here or they are dead. They slink off. They stay put and let you pass. That's all learned behavior.
I see young deer act in direct contradiction to their instincts. I very rarely see old deer do it. Sure, there is a spectrum of intelligence across living things. But this is science. Smart is not the word id use to describe a deer that evades me, because it’s in relation to me. I’d go with instinctive.
And I too have seen a deer hunkered down trying to get around me(he didn’t think I was me he thought I was another buck). I shot him.
To each his own. But I don’t think this is semantics. I know when I worked through the common human behavior of anthormorphizing animals, and started thinking about their world on their terms, I became more successful.