I can't speak for lmilcin, but wide open is also critical in low light to minimize ISO noise or to even have a stop or 2 down from the widest to have a little w

I can't speak for lmilcin, but wide open is also critical in low light to minimize ISO noise or to even have a stop or 2 down from the widest to have a little width in the focal plane while still capturing action. Agreed on the shots where you're at 1.4 and pushing the limits of your shutter speed.