The issue with this, and it goes back to the Gryder videos, is that there was nothing offered up that was even mildly convincing enough to standup under basic scrutiny. When you say "my father was DB Cooper" and offer nothing else, it feels more like we are in grainy big foot or flying saucer video territory.
The parachute is in direct conflict with the vortex's best information on it. They offered nothing regarding the actual night of the hijacking i.e. details about where and when he jumped, what the actual "plan" was, how he got out of wherever he landed, how the money was lost, some of these answers should be able to explain the Tena Bar find.
I suppose we will have to wait and see how it plays out.