Uh...yeah, you voted "yes".
It's a real scenario. I believe the prints showed the receptacle in the location it was installed. IIRC, the prints didn't clearly show such a large space next to the sink, I was under the impression that the sink was right on the edge of the peninsula. When trim time came along, it suddenly appeared that we were short a receptacle, which under the 2005 would be arguable - but the 2008 appeared to clarify exactly when 210.52(C)(4) kicks in.
I agree the use of the word "width" is a little confusing, but I believe it interchanges with "depth" in islands and peninsulas.
The exact same project is being built in Tennessee, and apparently they are being forced to add the second receptacle - I'd love to invite that inspector to the forum, but the GC is being mum about the fellow's phone number.