At the current levels of shutter lag, a photographer's more
likely to miss a shot on account of a slow finger rather than a
slow camera. You're right, though, a good photographer will
be able to deal with both sources of error to get the right
shot.
Not a bad shot, by the way, although getting the silkscreening
in focus might have been good. I assume the webcam's aperture
isn't adjustable, though?