Tony,
I thought that Guy was saying that business people that BAs work with don't like analysis, not the BAs. ...Guy?
...but that doesn't negate your DFD training story. If people prefer design to analysis, its pretty clear they are not BAs (irrespective of company titles).
As for me, design is not much interest anymore. Remember back at the end of the cold war when the saying was the 'history was over'? Well, about the same time I thought 'design was over 'because of the arrival the Common User Access (CUA) standard, based on Object Orientation, that gave us the GUI layout, the one that said 'File' was the first drop-down list on the menu line and all that. Then, the Internet and the free-form Webpage came along and undercut CUA a bit, but the basics are still out there. So, while the nature of design (for information systems/applicaations) was of interest to me back in the 80's, it does not really blow any wind up my kilt anymore.
Now, Guy's original theory about how business people prefer instinct over analysis (if it can be summarized that way), is interesting. A lot has been written about the Business-IT 'gap', about how the two don't understand each other, and instinct versus analysis/thinking might be a good reason. Like most things, though, you need a balaace of both no matter which 'side' you are on, another good reason to keep trying to decrease that Gap.