He is good. However, I'm not that impressed unless he can repeat it. If there is a one chance in 100 of making the shot then the odds making all 6 is only 1 in 100 million since the the first shot is a given. That is, it doesn't start until the first shot is made.
That is the way it is in science. If it is not repeatable, you discount it. For example, it would not unusual to flip a coin and it come up heads or tails 27 times in row. That would happen 5 times every day if everyone in the USA over the age of 5 attempted it once a day and a hundred times a day if they kept trying until they had at least 5 head or 5 tails in a row--just 16 attempts.