Funny that the article mentions the NY Giants; I've repeatedly mentioned having lived with an avid NYG fan last season, and even HE would comment on how the Giants were faking injuries to stop the clock.
I'd be watching Giants games (cause my housemate was the one with the 50 inch flat screen) and my housemate would call out "FREE TIME OUT!" every time a Giants player faked an injury to stop the clock.
Although, its only fair to admit that the Niners have done that in the past as well (the most obvious example being, I think, either the last time SF played NO or ATL during the regular season).