Well, technically, you're right.
However, I don't believe that I have ever heard anyone in the real world use the term SCSI-II to mean anything other than Fast SCSI. If they'd meant the Wide portion of the SCSI-II spec, then they would have explicitly said Wide, since it was a new concept to SCSI when it came out. (Actually, speeding up the bus was a new concept for SCSI, too, but that's certainly obvious in its implications, whereas Wide was not.)
I actually own a copy of The Book of SCSI, I believe. Thin blue and green book -- kinda looks like a Dixie cup? Looks like no. Oh, well.
I'll admit that I'm weak on the physical transmission specs, as I really have no need to be aware of them, but I don't think that my summary of the ``what the user sees'' aspect is far off base. If so, please tell me where. And I certainly didn't intend to dismiss the technical achievements of the SCSI engineering community. I realize that it's not as if silicon suddenly got faster and they plopped a faster clock into SCSI.
I certainly didn't mean to offend, and, honestly, I'm still not quite sure how I did. It's not as if I was implying that those terms were the end-all and be-all of SCSI. It is sometimes nice to be able to know what can hook up to what without knowing how the electrical current is rising and falling.
However, I will see if I can check out that book somewhere. It sounds like it could be interesting.