Come on, I've fallen at least 100 times at Vantage over 15 years and I weigh 200 pounds, and nary a bolt has pulled. Has this happened to you? I know a guy it happened to at Smith! Anyway, the "likely to pull the whole chunk of rock" statement is a crock. Maybe it's happened there once in the tens (or hundreds) of thousands of ascents over the years there.
Maybe if you weighed less you'd fall less
I've seen the pics. Frank Olding aka Rodchester (RIP) had it happen to him.