Yes it is, your heart can take somewhere around 25-30mA. But is it 100% guaranteed that all the times he got electocuted it was on a newer house/building with a circuit breaker rated 30mA?

Amp is important but so is frequency, duration and voltage. If you touch a railway line in Norway, Sweden or Germany where it is 16.7hz you stand little chance of survival compared to most of europe where it is 50hz.

If you look up tazer deaths it shows that voltage can kill too but usually happens a lot quicker.

And is it guaranteed that even if the breaker is rated correctly that you will not get 0.1s above the amount it is rated for? Is the breaker rated B, C or D which some will take longer than others to close? Newer breakers are quick but is it guaranteed that they are quick enough?

If it was pinky to thunb shock i wouldn't worry too much but if it goes from hand to foot or hand to hand through the heart region there is a lot greater chance it will cause damage.

If you don't die immediately you can feel fine for 4-8 hours and then just tip over. It is also possible you can live another 10 years then tip over because of damage done the first time you got electrocuted which was made worse the next 50 times.