Uhh, I don't think that those keys really will do anything. I mean, the keyspace is so huge and vast that it would be a dismal effort to check one by one which has some money on it and which doesn't. Also, theoretically brute-forcing bitcoin would require a huge amount of energy enough to drain our sun's own power.
Vitalik Buterin is kinda high on some drugs of some sort.
To me it shows that in a matter of years all balances will go zero. I'm not sure BTC is so safe anymore.
Someone broswing all day on this could gather something by chance.