There is a reason "P" stands for professional. Haven't you ever heard of "f8 and be there?"
Get over it.
why use f8 when f1.4 is available?
This thread is a bit unnerving as some folks seem to think that their way of shooting is the only - best - proper way. Sometimes there is a need to use full manual mode. Other times, I want to have shutter be the priority, especially when shooting birds in flight, where the light on the bird might change as I track it. This is where using DSLR as a tool allows me to concentrate on framing, position of the bird etc.
I am never in fully Auto, but use Av, Tv, and M regularly. Not sure why this would eat away at you that everyone, at varying levels of expertise, would use modes other than M (manual).
BTW, sometimes I have a 35mm f/1.4 on my body and need to get more depth of field for say a group shot. So, stopping the aperture down to f/4, 5.6 or 8, might be appropriate.