It's a form of survivorship bias, but also a case of the common logical fallacy post hoc, ergo propter hoc. Possibly also relevant: the just world fallacy ("We

It's a form of survivorship bias, but also a case of the common logical fallacy post hoc, ergo propter hoc. Possibly also relevant: the just world fallacy ("We made (subjectively) good decisions so we deserved to win").