Do you have a source for that claim? The official Bitcoin wiki certainly talks about non-financial uses of Bitcoin, and Script obviously makes such uses possible.
Well, I remember reading something like that once, so it must be true. ;)
In all seriousness, I did some Googling and the closest I can find is this:
"One final reason is that Satoshi was opposed to putting non-Bitcoin related data into the main chain. As creator of the system, his opinion should carry a lot of weight with anyone serious about extending it."
I realize that is close to being useless, but I can't find the direct post in question by Satoshi that it is referencing. I seem to recall it not being Satoshi, however, but one of the current devs that I read a similar sentiment from.
But again, I don't have any direct links. I apologize.