The only thing about the Brunswick Bowling exclusivity (is that a word?) is that it's still at only ONE publically-available location ANYWHERE in the country, Brunswick Bowling or not.
Now, if there were a small handful of e-Amuse-enabled machines in the country, only at Brunswick Bowling locations, then I'd be more inclined to agree with TGL. But right now, it's only exclusive to Brunswick Bowling because there's only one location in the entire country with it, and it just happens to be a Brunswick Bowling.
Given that this machine has been the only machine with e-Amuse on it for months now, the only conclusion I can draw is that the rest of the country won't be getting e-Amuse any time soon, if ever at all. At this rate, I'd probably wager that the Naperville machine will be fully unlocked before any other e-Amuse locations pop up, rendering it more or less pointless assuming Konami continues releasing unlock codes.