Thats not a Delica at the bottom; it is an Endura.
It is just the massive size of the Tatanka makes it look tiny.
Top to bottom, Tatanka, Resilience and Endura.
You know how they call some Spyderco knives little big knives. When you first get them they seem tiny, but the way they fit in the hand and how performance exceeds their size. Your perception of their size changes.
Well it is bit like that with the Tatanka. First impression is that is a massive knife, almost to big for practical uses. The Resilience has all steel liners also, but it is a light weight in hand compared to the Tatanka and it feels as big as it looks.
This is one serious folder.
I have average size hands, when I take in a standard grip there is a lot of handle sticking out the back. It feels to be a very solid grip, well balanced, total control. Choking up on the blade, trigger finger in the choil, (Yep Im a shooter) again total control. I feel confident I could do fine cutting like that.
Getting back on the handle gives you a lot of extra reach with the blade. Good to get a bit swing in those small machete like jobs. Warning! Dont get tempted to rest your thump in the lock release when you have you hand back there. It may not end well and you may come away with fewer fingers than when you started.
Opening the Tatanka one handed is easy. Closing the Tatanka with hand can be done but should be done with due care. Dont have your mind somewhere else when you are doing it or you may be picking up fingers from the ground. Two handed closing is easy.

Dont let all this potential lose of fingers put you off the Tatanka. As I said it is serious folder capable of doing serious things and should be treated with respect. If this knife is opened
when there are people are around and they take a step backwards.
If you want a folder to carry when you cant take your heavy duty fixed blade; then this is the folder for you.
Having said all that; I tend to agree with the opening post.
Half inch off the blade; re-proportion the rest of the knife to that and I think you would really have something.
