I'd like to point out that just because Bill James wasn't all that familiar with pitching patterns doesn't mean that other SABR oriented types weren't. Take, for example, Dave Cameron's "An Open Letter to Rafael Chavez" post from a few years back. For those who aren't familiar with the post and the aftermath, this article sums it up nicely: http://www.seattleweekly.com/2007-08...ly-read-blogs/
Cameron made these observations about Hernandez's pitching patterns from his home in NC, not at a game.
I think the fact that Bill James had a lot to learn about pitching patterns tells us a little bit about Bill James, not about SABR oriented analysis as a whole.