Agreed. I can't say for certain as I haven't tested, but simple physics would seem to dictate the angle of the point and thickness of steel immediately behind it would determine piercing ability far more than any given blade shape.
I've broken a couple tantos at the tip at the bevel grind. When they put a 20 degree bevel on a tanto tip it does weaken it in my expierence.
First one I broke was a complete accident , we have these steel desks at work and I had some wires that needed to be stripped maybe quarter inch . I was choked up on the blade. actually had the tip between my thumb and index finger and the spine resting in my Palm . I was being extra careful to not cut the wire and the tip hit that desk lightly ,now when I say lightly I mean I thought nothing of it , went back to work and it never crossed my mind. Few hours later I had to strip another wire , opened the knife and saw the tip broke off.