"I know security teams always show their very newest videos so those trying to keep privacy can keep ahead of them"

I mean the video was leaked and attempts were made to scrub it everywhere.
We can speculate on just about anything like your comment above (i.e. Bitcoin private keys being crackable by some shadowy intel agencys secret super computer. If you're going to be consistent you should hesitate about owning Bitcoin then if we can make random claims with no evidence.)

The onus is on those making claims to show evidence for it. So far there is none.