[DpR]

Lestat highlights the important point - edge. Many post allude to this point but none of the post have come right out and said it. A 1BB winner is far more likely to have a 300BB downswing that a 2BB winner. The exact difference can be easily calculated. Take 10k hands, the 1 BB winner needs to have a 400BB below expectation result while the 2BB winner needs to experience a 500BB below expectation result.

Clearly people with lower win rates will think these downswings are more common. I personally have expereienced a huge difference in my 'percieved' variance from when I was playing as a 1BB winner vs a 2 BB winner.